The Avengers 2 now has a name, and Ultron is the big villain.
http://www.guardian.co.uk/film/2013/...iddleston-loki
It was also revealed that Guardians of the Galaxy and Avengers 2 will feature Thanos
http://screenrant.com/avengers-2-gua...illains/all/1/
More news, Vin Diesel may join the Avengers as, Vision.
http://filmdrunk.uproxx.com/2013/07/...playing-vision - This is just a RUMOR, not complete truth.