Not that I can think of but quality of exclusives could work against them. I remember when everyone was hyping up games like Lair and Heavenly Sword. Both games failed to deliver to the Xbox360 took a steady lead over the following few years witg Gears, Halo, Bioshock and Mass Effect.
The same could happen this gen. The order 1886 looks like its going to be a bit messy (poor framerate, uninspired gameplay) and there is nothing else confirmed for the 2nd half of the year (uncharted definitely isn't happening). If Microsoft actually delivers on a new Halo, things may change somewhat. At least in North America.







