Re: Evan Peters Joins X-Men: DOFP as Quicksilver
I'm not sure if this is a big deal or not. They hold joint rights to the character and perhaps by doing so they can imply a joint universe rather than explicitly stated.
I do find it hilarious, those playing the x-men against Avengers card. Who cares how they were used first, they characters were integral to both franchises. The stories of Wanda and Vision's love story was a key arc to Avengers and no one could argue otherwise.
Sometimes fanboys are their own worst enemies.
“Whenever you see somebody crossing over to something it gives it pop. Like Murder She Wrote and Magnum [P.I.] — great crossover. I got excited.” Joss Whedon on Spider-man joining the Avengers.