Squirrel Girl
Come on! This has to happen! Squirrel Girl would be a perfect fit for the Marvel Cinematic Universe! Furthermore, with her personality, Squirrel Girl's adventures would inject some humor.
Of course, this is the new version of Squirrel Girl; she’s no longer a mutant. And since we don't know what will happen between Marvel and Fox, we could add that her movie would be a breath of fresh air in the relatively dark X-Men Shared Universe.
Despite her lack of cosmic powers (so to speak), she is actually one of the most formidable superheroines out there. She’s even defeated the Mad Titan! Her solo movie should feature a less formidable antagonist so the audiences can become acquainted with her. Once that happens, she'll be a great addition to any MCU or the X-Men Shared Universe team.
