About what I expected, except for the destiny ascension being such a big target. You'd think the turien Particle Cannon Ships would take higher priority. Or were they all destroyed by then?
The few turian ships armed with particle cannons were too valuable to not use, and so spent the war on the offense. The Destiny Ascension was halfway through refits and hastily pushed back into service, so spent most of the war on guard duty at the Citadel, where work crews could continue with at least some of the required refit work without the ship being in too much danger.
Did Kalros still kill a reaper?
Absolutely.
What happened with Okeer/Grunt?
Nothing majorly changed from canon on that front. Okeer's work with the Collectors was concluded before the butterflies arrived and none of them found him on Korlus. If he'd had a chance to learn about Binary Helix setting up a rachni cloning lab there, maybe things would have been different, but alas.
I'm guessing Eve survived?
100% Completionist Shepard, so yes.
Given Williams and Alenko survived, which one became a spectre? Did they both join shepards crew during the reaper war or was one of them elsewhere?
Apart from Tali, Legion, and a brief visit from Wrex, did we inadvertedly snowball other squadmates to bigger/smaller/different roles than in canon. It was mentioned that Liara got a lot more intel and ruins to explore, and both virmire survivors survived.
How did Zaeed spend the reaper war, and did Jessie miraculously start working again just in time to kill reaper scum?
Alenko became a Spectre between the events of Mass Effect 2 and 3, for broadly the same political posturing reasons as in canon. Both he and Williams participated in Alliance operations against Cerberus, before they returned to the Normandy to help Shepard.
Garrus was in pretty much the same boat as canon, except the Hierarchy provided a lot more funding and support for his 'special task group', since they were actually taking Reapers seriously from the get-go.
Liara got a few opportunities to explore prothean dig sites she never did in canon, and whilst that was fascinating for her most of it wasn't helpful for dealing with the Reapers and was placed firmly in the 'later' pile.
Tali attempted to restart the Cooperationists movement, but found relatively little success there. Her father promising to build her a nice mansion on a seaside somewhere did not really help her mood. Legion is now her full-time bodyguard for lack of other things to do.
Wrex's story ended up largely the same - he's a big damn hero, successfully secured a genophage cure in return for promising to do something the krogan were going to do anyway (the number of krogan who legitimately believe this was a cunning political play by Wrex is... nonzero), and has more kids on the way than you can shake a pyjack at.
Thane got new lungs, and so didn't die to Kai Leng. He rejoined Shepard after the failed Cerberus coup.
Miranda and Jacob defected from Cerberus, along with most of the Normandy's Cerberus crew, after the Collector Base fiasco. They had their own thing going on during the war, mostly what they were doing in canon - running around the edges of the conflict zones, messing with Cerberus backlines and helping other defectors.
Everyone else (Jack, Kasumi, Grunt, Mordin, Samara, and Zaeed) went basically unchanged from canon.
Given her cooperation with the citadel, and power to retake Omega from cerberus, will Aria end with even more influence in the terminus systems post relay restoration? Like, unify the terminus systems level of influence?
Sure seems that way! Although, to be fair, she was pretty powerful as-is, and I suspect her not taking over a larger chunk of the Terminus is as much lack of ambition as lack of power.
Did Roxanne Valentine ever reunite with her daughter? Or survive the reaper war for that matter?
Yeah, she moved into her husband's apartment in Port Hanshan and as such was pretty well protected from the Reapers. Unfortunately, Taylor Valentine got shipped off to Sanctuary and subsequently huskified by Henry Lawson's research staff.
Things turned out more or less how I expected, though I am a bit confused as to why Legion had no loyalty mission. I guess the Heretics just all died or their undercover programs got overwritten with the rest of the Geth.
The heretic geth were less of a problem because their work on creating the Loyalty Virus was stolen by the quarians, so Legion didn't see the need to drag Shepard into conflict with them. And then they got mulched by the Migrant Fleet, like the rest of the geth.
Not sure about what happened on Cerberus' end. The coup still happens if I remember right, and cronos station got leaked after the cord-hislop situation. Was there any major changes in the cerberus storyline worth mentioning (apart from hotshit mcgee suddenly realizing cybernetics have a bad habit of shutting down at the worst time)?
There was one major difference in that Cerberus didn't know about the Crucible, which meant no attack on the Mars Archives, and no attack on the Temple of Athame on Thessia. In the time between the Collector Base being destroyed and the Reaper Invasion, Alliance forces spent a while kicking over Cerberus bases through the Traverse and Terminus, dealing a fair bit of damage, and their efforts throughout the war were somewhat less coordinated as a result. During the war, their coup was foiled even faster than in canon thanks to sabotage of their efforts by the Spectres, Sanctuary was assaulted and destroyed by Alliance forces, and then their base got kicked over ahead of schedule after the Shadow Broker passed a tip-off to Hackett.
Legion goes off with some assets and builds an AI empire quest when? Haha
Sometime between when the Sun swallows up the Earth as a red giant, and the heat death of the universe (at least, if I'm the one writing it).
The following will likely come across as harsh. Please don't take it that way. I love this quest and am putting together this post specifically in an attempt to provide useful avenues for improving your craft.
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Hope this helps!
It does!
I don't plan on doing another planquest anytime soon if at all, but this is good advice nonetheless, I think, and I appreciate you taking the time to write it up.
The various deficiencies of the planquest format for the specific scenario I was forcing it into... well, you already covered them pretty well. It was something I was aware of going in, but didn't really do enough to combat in my initial designs - as others have noted, planquests are complicated enough without mechanics that change partway through, so I was ill-inclined to make any major alterations once the ball got rolling. This was probably, strictly speaking, a mistake from a game design perspective.
In hindsight, I probably shouldn't have added the fourth term. Whilst the system was hardly well-designed and well-balanced before that choice, it was designed initially to run for three years, and several of the issues I was hoping to sidestep by running a short quest got severely exacerbated by stretching things out. When players ran out of options at the end of the quest, it was because they'd powered through the entire backlog (even after I padded it with things like the largely pointless repeatables), not because resource/time constraints prevented them from getting anything more done, and ultimately that didn't really mesh with the idea I wanted to portray.
Still, at the end of the day, the first rule is the rule of fun. I had fun, other people had fun... I'm going to call that a success.