User blog comment:James12708/Bioware Hasn't written themselves into a corner/@comment-4950455-20121109062047/@comment-1679409-20121109075741

I definitely see Milkman's point. The Star Wars franchise could actually find something that was reasonably close to the threat imposed by the Empire (like the Yuuzhan Vong) and Stargate was able to find threats beyond just Apophis. But what even comes close to the Reapers, much less topping them? More Reapers? Going that route cheapens ME3 and all of the endings.

The only way I can see it working is a rise of the Leviathans storyline.