“You know, they had a rough beginning. They’re interesting to me because they sort of represent the part of the world that wouldn’t necessarily agree with The Avengers. So they’re not there to make things easier. I’m not putting any characters in the movie that will make things easier.”
Joss talks about Quicksilver and The Scarlet Witch (X)

Joss talks Much Ado, Avengers 2 and S.H.I.E.L.D. at the MTV Movie Awards

Avengers 2 to assemble in UK

"Marvel’s The Avengers 2 is due to begin shoot at Pinewood-Shepperton in early 2014, with production due to get underway later this year.”

- Screen Daily (X)