Minutes ago, Baylor AD Ian McCaw tweeted the following (that I had to see when someone else RT'd it):
This is huge news for a couple of reasons, which probably seem obvious to most. First, I don't know that we've ever sold out season tickets before. That's a fairly incredible feat in and of itself. Second, the part about seat selection is something I know people have been waiting to hear. Originally, I believe seat selection was scheduled to take place in February or March. My guess is that when they knew they'd get close to selling out, they pushed it back. Regardless, if you want to make it to a game next year in McLane Stadium, you're going to have to buy single game tickets or pick them up on the secondary market.
Congratulations, Baylor fans. This is a big day.
UPDATE: Baylor's official release.