|Comic Version of Scarlet Witch & Quicksilver|
Joss Whedon was at a premiere for Iron Man 3 when he said that his draft of the sequel to the 2012 blockbuster movie contained a "brother/sister act", which has turned out to be Scarlet Witch and Quicksilver. Those two characters were also used in the X-Men universe, so it has many wondering if there could at some point be a crossover between the X-Men films and The Avengers films. There would be some hurdles, since the X-Men films are produced by FOX and The Avengers is produced by Disney. However, a ton of money would obviously be made, so its certainly possible those hurdles could be cleared in the future.