Its possible, though we won't know for sure until we actually hit the release of Natal. This year they have an Xbox 360 slim (likely), Natal, 16 or so games for Natal (same as launch) and Halo: Reach which by all accounts looks like the penultimate Halo experience.
If all goes well, we could see the Xbox 360 board a new product life-cycle that causes a second peak in 2011 or so.
Do you know what its like to live on the far side of Uranus?