The ending of The Avengers pretty much gave it away, but Marvel Studios president Kevin Feige has pretty much confirmed that, like in the comics, Stark Tower will indeed become The Avengers Tower when it returns in Joss Whedon's Age of Ultron next summer. However, it seems we'll get an early peek at the New York City building in the upcoming Captain America: The Winter Soldier.
“You get a quick glimpse, I don’t know if you noticed, of the new Stark Tower – which is not the Stark Tower it’s the new Avengers Tower,” Feige revealed to Slash Film. “We show it in there. It goes by *snaps* real fast during that [SPOILER - targeting] sequence. But it’s there.”
As aforementioned, the final moments of The Avengers featured Tony Stark (Robert Downey Jr.) and Pepper Potts (Gwyneth Paltrow) overlooking holographic blueprints for the new tower, which a final panning shot had revealed that only an “A” remained of the “Stark” logo after the Chitauri attack. In addition to potentially housing the team, the Avengers Tower is likely a permanent home for Stark himself considering his mountainside Malibu mansion was completely destroyed in Iron Man 3.
The Avengers: Age of Ultron stars Robert Downey Jr., Chris Evans, Mark Ruffalo, Chris Hemsworth, Scarlett Johansson, Cobie Smulders, Jeremy Renner, Aaron Taylor-Johnson, Elizabeth Olsen, with Paul Bettany, Samuel L. Jackson, and James Spader. The film is set for release on May 1, 2015.