1) I bet we won't see Quarians or Geth because that means setting a canon for the choice. 25% chose the Quarians, 33% chose the Geth. 37% chose Peace.
2) The survival of the Drell and Hanar depends upon Kasumi's quest in ME3, so we won't see either of them.
3) The Elcor did not get "enough" off their world - enough for what is unclear. Most likely for reproduction of their species. I don't expect to see them. I also don't expect to see the Volus. They require finding a world with an ammonia atmosphere and require environmental suits otherwise.
4) Krogan were too popular to kill off. They'll be there. Perhaps the genophage cure was not as wildly successful as Wrex or Wreav hoped. Because Mordin used different space magic sites than was used for the genophage, Bioware has the opportunity to fix the Krogan reproduction rate and make it reasonable.
5) The Batarians are toast.
6) We'll see Turians, Asari, Salarians, Humans, and Krogan from the Milky Way. We'll meet new species in Andromeda!
7) I figure the Ark will leave some time after the Fall of Thessia and before the assault on Cronos Station (before the Cerberus Assault on the Citadel). Why? I think Mike Gamble said the named characters on the Citadel survived. This may be how they survived. "Continuity of civilization must be considered. I never thought this day would come."
8) I also guess that the trip will take about 500 years. It's a one way trip. Finding a d-DNA world for the Turians will be interesting. Then again maybe the Turians stayed and fought and we don't see them.
@sH0tgUn jUliA
That's a very negative and dark portray of things to come.
There might have been enough Quarians recruited, the missing people who didn't return to the flotilla when they called people back would have been written off as Reaper attaks and losses in a chaotic galaxy. Maybe the Council decided to save a few, even if they arn't the Councils favrite species.
If you choose the Geth then a Geth Fleet arrive from outside the system tha never shows up otherwise... a Fleet that wasn't helping the Reaper controled Geth.... They might have been the Geth's evacuation and survival Project, maybe they had a set destination for Another galaxy aswell... Andromeda? Since it's nearby and outside of the Reach of the Reapers presumably. The Geth didn't want to get wiped out by the Quarians or Reapers or Reaperized.
If you choose the Quarians or Peace nothing is mentioned about it.
The Geth probably had two contingency plans,
1: Escape the threat like their creators did when they were about to get wiped out and go to Another Galaxy.
2: Build a Super Dreadnaught to help defend themselves.
3: Live as prisoners hoping for an eventual Release. (If someone else would pull off a Synthesis later, they would have been free of the Catalyst)
The Council really don't like or trust the Geth and likely wouldn't invite them unless they had something vital for the mission which forced them to agree to the deal. The Geth had known about this threat longer than anyone, and might have been preparing for quite some time.
The Hanar and Drell arn't wiped out just because their homeworlds defences would collapse. It would take at least as long a time to hunt down Hanar in the Deep oceans of the Hanar homeworld as it woudl take to hunt down Humans on Earth.. If you and Kasumi save them from sabotage their homeworld is untouched by the Reapers, one of very few Worlds to pull that off.
They arn't dead in any scenario.
Elcor failed to airlift a lot of their people, but part of their problem was that the population was spread out over the whole World. This also made Reaper progress slwoer since they wern't as dencely packed in population centres. I expect them to survive in anything but Refuse just like every other species pretty much.
Not sure if they will be brought on board the ARK Project, they got very limited Resources to offer, there might be a few spots for the evacuated people.
Krogans, I Think they were confirmed already in a video.
Batarians, I wouldn't cry rivers if they don't make it to Andromeda, they would survive in the Milkyway anyway. They were mostly content on the side, never an imporatant part of the ME:Universe.
The Council species will certainly be there.
I expect Bioware to find a way to include the most popular species.
Then you got the possibility that the ARK took millenia to travel to the Andromeda Galaxy, the Geth could have made it there faster sicne they didn't have to care about frail Organic needs.... And the Geth were the Remnants... They figured out the meaning of Life and Another singularity and in that moment their existance as we know it ended. Leaving only ruins of advanced Tech behind.
Weird but just as likely ans any other crack pot theory.... People don't like Ancient humans, lets see how they like remnants of Ancient Geth that figured out that Life was all about 42 variants of meaningless and suffering. Now that would be pretty dark.