Odd, Season 2 on DVD is coming out AFTER Season 3 premieres (I'm speculating that S3 will debut the same time as S2 and S1: mid-to-late September).
I think it would be smarter to release S2 BEFORE S3 starts, to give people a chance to get caught up if they misses any episodes. Once the new season starts, most people won't care anymore if they missed a S2 episode. They could sell a few more units if people want to buy because they missed a few episodes.
Hmm so maybe they'll start the season in mid-to-late October? That could mean less breaks in between episodes!