LCS would be useful for close support of assault forces, and would be useful in the more coastal waters of the Southwest Pacific where we'd be fighting Bintang.
The Zone Defender revision would make the GF armor sets cheaper and easier to build. Also might be a prereq for developing specialized suits, such as for maritime operations (the Marine-pattern Zone Armor)? GF Zone Armor would enable a firepower and survivability increase during the initial assault waves at a minimum. Marine-pattern armor would likely make "beach landings" easier if hovercraft can't take then all the way to shore.
Hammerhead Wingman would both be useful for ASW work and providing additional air assault firepower for the ground troops. Fighting on islands away from regular air support means needing all the help you can get. Ferro Aluminum armor refits might not be necessary if we're phasing out the older designs that would need the modification (though no sign the Pitbull is getting replaced yet, so likely not a bad idea to do anyhow).
Guardian Mk II is all about adapting the existing design to better handle Zone Armor. Given that I'd really like a lot of Zone Armor in the amphib assault forces (and we all want it in the GF in general), an APC that can more easily handle them is a good idea. The Armadillo is basically an assault APC version of the Guardian, so having that around increases vehicle survivability more, but I wouldn't expect it to majorly replace the regular version on assault ships.
The Predator is basically end of life upgrade-wise, so we need to get a replacement for it. And if we're doing that, might as well package it in with the work to improve GDI's amphibious assault capabilities. Now, if GDI puts forth an amphibious tank (perhaps based on an amphibious Guardian Mk I/II?), then the Paladin becomes optional to me for now.
The MRAS, given that it's basically the C&C4 crawlers concept, is largely a wish list item, not necessarily something that actually need. It would likely be useful during the campaign, but not vital.
Our current gen hovercraft transports date back at least to TW3, almost certainly 5+ years prior to that, and with all the other evolutions and advances, it might be time to look at a new design while we're working on things. Also possibly revive the infantry hovercraft concept like they had to some degree in TW1 (C&C Renegade).
And laser sats is mainly for "Haha! Our ion disruptor prevents your ion cannons from hitting our ships with ion cannons! Prepare to die!" moments to be followed by "Ah, but do they stop lasers?" and orbital death beams strike. At least in my mind, that's how they'd work.
