"Avengers: Age of Ultron"!
— Marvel Entertainment (@Marvel) July 21, 2013
As a nice surprise at the very end of the Marvel panel, Joss Whedon came out to show a very early teaser of the sequel ‘The Avengers’. In addition, it was revealed that the film will be coming out May 1, 2015.
Ultron is coming to Joss Whedon's Avengers sequel in 2015 – and here's the official logo pic.twitter.com/rwftsNfpmh
— Marvel UK (@MarvelUK) July 21, 2013
As far as cast members returning, according to Deadline:
It looked like all will be back though there was no mention of Vin Diesel, who is rumored to be in line to play The Vision.
So, now who’s excited?!