Or maybe they didn't have to avenge him at all.
Interestingly, the movie didn't include a funeral scene for the beloved agent, leaving his status open to speculations. But all speculations can now be put to rest, as Agent Coulson will be back (and better than ever) in the upcoming Marvel TV series, Agents of S.H.I.E.L.D.
Directed by Joss Whedon, the same guy who directed The Avengers, the series will air on ABC starting on September 24, 2013. Clark Gregg reprises his role as Agent Coulson, and is going to be joined by a brand new cast.