From a section entitled THE PLAN:
“In Mass Effect 3, you know you need to take back Earth, but the path to victory is less clear at the outset. You won’t just find some long-lost Reaper “off” button; says Hudson”
From a section called OLD CONFLICTS, NEW ALLIES:
“Don’t expect to win the loyalty of the galaxy by simply completing a series of fetch quests,”
In a section called BEYOND THE TRILOGY:
“… part of what you’re trying to do is save the universe so you can live in it. That’s part of the promise, I think, for any great IP. It has to be a world worth saving… I think Mass Effect has that quality to it. If you get rid of the Reapers and win that, wouldn’t it be amazing to just live on the Citadel or just take a ship to Omega? That makes sense.”