Below is a link to a casting call that went out for Avengers 2. It's got some spoilers so beware, but it also contains some things that might be relevant to your interests. Still waiting on confirmation that this is for real but for now, have fun. :)

CLICK HERE IF U DARE.

Is it 2015 yet? Happy Friday, ya'll.

P.S. - Here's a link to the source they're quoting from. Has some additional info.