Reports are coming in that Michael Fassbender is wanted for not one but two villains in the Marvel Universe. First off Fassbender is wanted by 'X-Men: First Class' director Matthew Vaughn to play a younger version of Magneto, he would join James McAvoy who will play a young Charles Xavier in the film.
The other role is the yet to be named villain in Marc Webb's 'Spider-Man' reboot, since both films are being produced by different studios - 20th Century Fox for 'X-Men' and Sony for 'Spider-Man' it is unlikely he will be in both.