Reports have confirmed that the sequel to the widely popular 'X-Men First Class' will take place eleven years after it's events. Which, if you think about it is quite a bloody long time! I guess this means they have time to build up more of a story arch between Professor X and Magneto, It gives time for Xavier to adjust to the permanency of being bound to a wheelchair and also Magneto the opportunity to build an army of mutants to help eradicate the human race.
However, sources have also confirmed the widely popular 'Sentinels' will be set to make their mark on the movie (which was alluded to in X-Men The Last Stand). It's also been rumoured that Patrick Stewart, Ian McKellen and Halle Berry might be reprising their roles to some extent.
I guess we will have to wait until July 17th 2014 to find that one out for certain.