Here's my rough plan for the vote. Definitely closer to the "improve the chassis/give the IT new toys" blocs rather then the radical redesign group. I tossed away the last of my ability to care about making the mechs really pay anything beyond lip service to the laws of physics when we started diplomatically bludgeoning people over the head with our Nazi wunderwaffe electronics and everything we derived from them, so I'm just working with the "mechs are cool" mindset right now with pretty much zero cares beyond that.
[X] Plan: Rugged Terrain Rationalization
-[X] While the first generation Iron Tiger was, is, and will continue to be a pride of the nation as the very first war mech produced, it is very clearly a design made by engineers stumbling around in the darkness of possibilities with absolutely no experience on how such a platform could, would, or should work on a modern battlefield. Now equipped with institutional knowledge gained from shoving the first generation into pretty much every role we could think of and seeing how poorly the mech handled it, the second generation of Iron Tigers would pare back the various armaments and equipment to focus on the roles it was determined mechs could have a place in. The seeming downgrade of the visible weapons loadout led to jokes and rumors about the first generation being a run of high tech "super prototypes" for a mass production variant, but those few who have sat behind the controls of both know the new mech is anything but, not that they're going to say anything with the classification level they're behind though.
-[X] Internal Systems and Equipment
--[X] NBC Protection: With the benefit of hindsight the full SCARS, while entirely functional with some potential for possible extreme environment vehicles, is rather overkill and taking up mass and cockpit volume that could be better used for other systems. While the airtight seals and cabin overpressure features are retained, the new protection suite does away with the sealable vents, on-board air storage, rebreather system, and CO2 scrubbers. They are replaced with just a heavy duty filter and, most crucially, an air conditioning unit, reducing the overall mass and volume of the system.
--[X] "Stalking Tiger" Glassless Control System: An evolution of the Tigerlink "overseer" system that collated all the important data on the Iron Tiger's systems before displaying them in an accessible manner via computer screens, the Stalking Tiger goes one step further. Using our recent advanced in electronics and computing technology, the Stalking Tiger removes the cockpit viewports entirely (except for a single compact periscope backup). Instead, taking advantage of the freed up internal space, the surrounding environment will be primarily viewed on an array of computer screens spread across the interior front and sides of the cockpit displaying a live feed from a number of cameras facing multiple directions on the exterior of the Iron Tiger. This allows for a greater field of view for the pilot, without even alerting the enemy that the Iron Tiger is looking in their direction, while also increasing cockpit protection by allowing additional armor to cover where the viewports once where. The Stalking Tiger also includes night vision cameras, while retaining and expanding on the Tigerlinks's overseeing capability by taking another shot at linking weapon T&T, determining where the weapons are pointed and using that information to superimpose a targeting reticle on the live feed for the pilot. An enterprising young engineer even put forward the idea of mounting cameras on the back of the Iron Tiger's palms, allowing it to peek around corners in urban areas without exposing more than a hand if the feed can be successfully routed up the Iron Tiger's arms.
--[X] Gyro Stabilization System: It is hoped that with a few more years to poke around in the Laufpanzers and gain experience with the Iron Tiger that our scientists have closed the technical gap between them and the original designers of the Laufpanzer, letting us natively create a new gyroscope system that doesn't waste so much mass as our first native attempts.
-[X] Weapons
--[X] "Dragon Spite" 57mm Mech Autorifle: While the 57mm caliber itself has shown promise in it's ability to penetrate lightly armored vehicles as well as retain stopping power when punching through concealment and light cover that would protect against lighter rounds, the tri-barrel gun currently firing them is overweight, overbuilt, poor at the AA work it was marketed as being able to do, and still has to reduce performance to avoid misfiring. The new rifle does away with 2/3s of the barrels and the idea of using it for anti-air entirely, instead being an electrically driven chain gun with the ability to extract and eject misfired rounds in order to increase reliability. Without the need to fill the sky with enough lead that one of the shots may hit an airplane, the rate of fire can be reduced slightly to reduce wear and further improve reliability as well as cooling. The designers made a significant effort to integrate the Autorifle into the Stalking Tiger system without too much hassle, a fixed camera mounted above the gun barrel in a way that emulates looking down gunsights to provide an alternate firing view for the pilot if it can be used better, or they in case suspect that the Stalking Tiger's target reticle may be off. Further work to provide modernized ammunition in the caliber, as well as being able to swap between them in combat, culminated in a new HEDP shell for use against infantry and light targets and an APDS shell for penetrating armored targets.
--[X] "Pouncing Cat" Over-the-Shoulder ATGM (Back-mounted): The Lightningbolt is a really good cannon that has some of it's own programs going to try to mount one on a tank, but it's not as suited the roles we will be putting the new Iron Tigers in. So while the Lightningbolt will likely stick around in some form due to the Iron Tiger's modular nature in case we ever need to haul a tank cannon through dense forest for some reason, the Pouncing Cat laser beam riding ATGM was developed to serve as s new heavy anti-armor weapon of the Iron Tiger shock troops while being lighter and easier to maneuver with than a full-size cannon. Taking as many technologies from the Lightningbolt as possible, the Pouncing Cat is not a single shot launcher, but one that has it's own autoloader to allow for repeated shots without requiring multiple tubes, even if it has a much shallower ammo pool then the cannon due to the larger ammunition. The ability Lightningbolt to aim and shoot at a target in it's arc independently also makes a reappearance in the form of letting the Pouncing Cat keep the guidance laser on the target after firing, even as the pilot may shift their attention and the Iron Tiger to engage other targets. Meanwhile the low recoil launch of a missile has much less of an adverse effect on the balance of the mech allowing for easier firing on the move. The missile itself is a standard HEAT warhead as it was the simplest and least likely to be messed up. While the ATGM does have it's much longer official name, the fact that the missile is guided into it's target by what is essentially a military grade laser pointer is the source of it's "Pouncing Cat" nickname.
--[X] Iron Tiger Scale Combat Engineering Tool - Shovel Axe Hybrid (ITSCET-SAH): An entrenchment tool built for Iron Tigers to use, it is only minimally collapsible to maintain integrity, with one side of the shovel blade sharpened to allow it to serve as a passable axe, in case any trees need to be felled or structures torn down. Made out of the same material as the Dragon's tooth, it could theoretically be used against enemy armor the same way it's used against trees while having greater reach than the knife, but that's very much not the purpose it was made for.
Another possibility I'm thinking about is having the ATGMs be overfly top attack instead using an EFP firing downward, or even getting the missile to roll on it's side and launch it sideways so it could technically shoot around corners in urban areas.