Nope. But they do plan to notify TB members before they tell the rest of the world. And in future cycles they plan to actually allow TB members to book seats before releasing the seats to the general public, but that feature is probably 18-24 months out with the new reservation system that they are just putting out to bid now.
At the DO we asked this a couple times and the folks there seemed pretty sincere in their denial of any knowledge on the topic. My bet is somewhere in early August; they'll know better how things are looking financially at that point in terms of routes and figuring out which ones they should change for early '09.