I don't think it'll happen next year. Armstrong did well enough after several years off that it looks like he wants to keep training and come back as a team leader next year. Taking the Schlecks wouldn't work there. Though as well as LA did and despite his comment of being an "old fart", he doesn't seem to want to acknowledge the impact being nearly 38 years old must have had. Next year of course he will be almost 39 at the Tour.
When he said his performance was a little disappointing in the last time trial because of the tough mountain stage the day before, I immediately thought, yeah, that's one thing that happens as you get older. The recovery time gets longer. The much younger Contador was able to go from that brutal mountain stage to winning the time trial the next day. A younger Armstrong did similar feats.
At any rate, I expect next year LA will ride as a team leader. Then he'll probably retire again. If Radio Shack looks like a good deal at that point, I wouldn't be surprised if he continued in some advisory capacity and tried to bring more top riders to the team. The Schlecks? Who knows.