No, not really.
But some mysterious project will be announced by Epic Games' poster boy Cliff Bleszinski next week. Rumor has it that CliffyB is set to appear on Late Night with Jimmy Fallon to "tease" at something next Thursday night. What could it be? Yeah, it’s almost certainly going to be Gears of War 3. And I'm not really sure why Epic is being so tight-lipped about the whole thing, either—it's not like everybody didn't already know that there was going to be sequel after the anti-climactic ending to Gears 2.
Whatever the announcement, don't expect too much to be revealed. I'm sure Epic and Microsoft are waiting for E3 to really announce the game properly. I can already hear Epic's new, and improved Mantra, "bigger-er, better-er and more badder-ass-er" spewing from CliffyB’s chipmunk-like mouth in June. No disrespect, Cliff.
Anyway, look for Gears of War 3 on store shelves sometime in fall 2011.