Entertainment Weekly has just released two teaser posters for Bryan Singer's upcoming X-Men: Days of Future Past. As you can see, the concept layers the young version of a character over the old version of a character in the shape of a letter X. In Magneto's case, you're like, "Holy shit that's awesome." And in Xavier's case, you're like, "Holy shit, the Magneto one is awesome."
Still, they are good teaser posters in that they communicate the time traveling aspect of the story with graphic ease and look cool enough to excite fans. I only really like one X-Men movie, so my hopes for this are probably not as high as yours. Maybe some footage might help me change my mind.