Originally Posted by Mulholland '49
I never said it contradicted it by Beast building it. It's not going to make any sense if Magneto comes back and helps him build another Cerebro though.
Not really. I mean, Magneto moved those plates around in X2 as if he knew exactly how to change its functions. So maybe something forces him in a last ditch effort against another foe to finish a Cerebro 2.0 to stop it?