I had been under the impression Tony was trying to re-brand the whole SHIELD ideal by slapping the Avengers logo on it and, while it failed amazingly, would have used Ultron as a means of enforcement. Now that the idea has to be scrapped and he can no longer be relied upon to head anything, Cap's the one likely to allow SHIELD to come back into play with HYDRA all but expunged, especially after Cap's reaction to Fury returning with a Helicarrier, on a mission that represents what, according to Cap, SHIELD should be all about.
I had heard Coulson is no longer going to be appearing on the big screen but that feels so wrong what with Civil War coming up and the increasing significance of the rebuilt SHIELD recruiting Inhumans and others. Can't have a war without armies and there's only a handful of possible soldiers for each side if we only take the ones that were in the movies.
SHIELD will never be more than a fraction of what it once was, but I'm intrigued enough by everything that's happened toward the end of season 2 and I'm really hoping that if they can't play ball with the big boys, then at least Coulson and company will start interacting with our Netflix pals like Daredevil, Jessica Jones, Punisher, Elektra, Luke Cage, Iron Fist, and even more like Blade, Ghost Rider and more.