User blog comment:Bronzey/Tying up the threads: possible storylines of Mass Effect 3/@comment-1922906-20100303224612

ever though that council space will be destroyed by the Reapers, and when done, the migatory fleet will populate the 'new' citadel?

or-- how about the majority of the population tries to flee before the Reapers attack, taking all ships available from all races etc. The migratory fleet can swoop in and save lots.