According to the official Epic bulletin board, the next "title update" (that's what they call patches in Gears of War) for the game will include a new multiplayer gametype called Annex!
The patch will fix a "bunch of glitches" too, as well as providing 720p for VGA users running at 1280x1024.
But most of all, a new multiplayer game in Gears!
There are no details at this time, but there will be next week.
Gears Forum: Next title update almost here