The next Marvel project by Mark Millar and Steve McNiven will be called...Nemesis. No word on who or what it involves just yet. Marvel should be making an announcement later today (hopefully). For now, here's the teaser that Millar posted over at Millarworld.
Millar later gave the following clues:
1/ We're doing this for Marvel.
2/ The main character driving this is in the name.
3/ It's going to be awesome and very big indeed.