The Avengers 2 is filming in the UK with it said the Iron Patriot was spotted on set in addtion to S.H.I.E.L.D. Agent Triplett ( B.J. Britt).
Update: It's also said Anthony Mackie and Samuel L. Jackson may have been on set.
"The Avengers: Age Of Ultron" hits May 1, 2015 directed by Joss Whedon starring Robert Downey Jr., Chris Evans, Chris Hemsworth, Scarlett Johansson, Mark Ruffalo, Jeremy Renner, Samuel L. Jackson, Elizabeth Olsen as Scarlet Witch, Aaron Taylor-Johnson as Quicksilver, Paul Bettany as Vision, with James Spader as Ultron.
Head on over to the Cosmic Book News Avengers movie hub for more.