3. Scarlet Witch
With Scarlet Witch and her brother Quicksilver both being confirmed for the 2015 Avengers sequel, hopefully Marvel will just skip over the origins film and get straight on with The Avengers. Whilst the story of Scarlet Witch is actually very interesting, to have a whole film dedicated to her troubles wouldn't exactly be the action film of the year. Scarlets alter ego, Wanda Maximoff is part of the Caps Kooky Qaurtet including Iron Man, Captain America, Quicksilver and Haweye which is likely the reason for her involvement in the next Avengers film. If plot for the next Avengers is similar to the comics then Scarlet's story will make her one of the most troubled characters in Marvel films. Scarlet having her own film would be disastrous, it would be more of a depressing drama than an action film. Marvel have made the right call by putting her in The Avengers and skipping out her own film, I just hope they don't go back to her story as a prequel later on. After a back and forth relationship with The Avengers she ends up having a mental break down thanks to Wasp, which leads to the end of the team. The clear traumatic life of Scarlet strikes me as interesting and is great for an overall storyline but in order for her story to be fully told on the big screen she needs other characters to keep the audience interested.