Originally Posted by Great Mind(s)
Mark my words Cerebro will be re-built w/ the help of Magneto. Remember the government funded Cerebro in First Class...now without their help how are they supposed to rebuild it? Especially the huge room we saw in the original movies. Both X1 and X2 indicated Magneto helped Charles build Cerebro... I foresee a temporary truce between them in this film. The actors even hinted at it when asked about this plot point following First Class...
Something along the lines of "The good thing about Xavier and Magneto is that they're on again off again friends."
Yep, Magneto's definitely gonna help Xavier build Cerebro.