All I want from Atari are quality rereleases of their console titles, retro hardware like the Atari Flashback and the occasional remake of classic games in the vein of Tempest 2000 or Pac-Man Championship Edition DX (not an Atari game, but in that style).
The recent Ghostbusters was a good game, but it wasn't what I want Atari's name slapped on. Unlike SEGA, I really think Atari hasn't remained relevant in the HD era. Like, to me, an Atari game is very much the type of games found on the Atari consoles. I never imagined them releasing games in the modern era, since they don't have that modern era style. What they do have are a great back catalog and a number of classics that would make for good XBLA/PSN remakes (again, look to Tempest 2000).