I have seen all the X-Men motion picture movies, even "The Wolverine." But while the usual mutants like Storm, Bobby Drake, even some of your bad mutants like Erik and Mystique get their moment on screen. I would love to see some of the other mutants that have not had their screen presences since their first introduction in the X-Men series.
Remy Lebeau played by Taylor Kitsch was good with his work. While I did like his introduction to the movie, I personally feel that his story warrants a closer look. What was his life like before he got his mutant powers? How did he handle life before he ended up in the hands of William Stryker? What did he do to survive as a mutant in a world that is unforgiving and not accepting of supernatural and unexplained? Their are so many questions to his story that need answering, that I wish Marvel would answer.
Wade Wilson played by Ryan Reynolds was an awesome actor and to me, did very well with what he had to work with. But his life story is what I would also like to hear about. What was his childhood like before he got his power, what made him decide to become a mercenary? How did he handle his skills as a mutant? What made him decide to join William Stryker?
Some of the mutants need to be explored a bit farther. We've seen stories like ones on James "Logan" Howlett, Charles Xavier, and Erik Lehnsherr, as well as stories about how mutants like Henry McCoy and Mystique came to be in the X-Men world. But Marvel should be like "Lets give the people what they want. Not what we've seen or read about before."
Marie (Rogue) is another who I would like to see have a solo movie. Marie is one character that while she was show in X-Mens 1, 2, and part of 3, she does deserve her own movie. It's fair to say that their is a bit of a gap in X-Men 1, where Marie was before Canada, what she was doing after her powers manifested. Marie does have some bad girl in her, we just haven't seen it yet.
Ororo Munroe (Storm) is another with a shady past that needs a film. Granted, Halle Berry is awesome as Storm. The character herself has not been explored yet to where we could fully understand. Storm only got two cameos in two of the X-Men films: First Class and Origins: Wolverine, while Storm was in X-Mens 1, 2, 3, and Days of Future Past.