the new rules will force mid-majors to realign in order to bring in extra home games (sbc & mwc play 3 home conference opponents every other year). it will mean the end of welfare for mid-majors as well -- a lot fewer six-figure payouts for playing nebraska in lincoln, a lot more home & homes with northern illinois.
I agree that the new standards will force non-BCS teams to play amongst their peers more often. Return games will be needed and those are harder to come by playing the BCS teams. UCF currently gets four I-A home games from the MAC, meaning we need one I-A OOC home game per season. That's not a HUGE task, but it's one we have to pay attention to. Like you said, the SBC schools will face a bigger challenge.
Lets not forget though that those large BCS programs also need the payday games. They're there for a reason. The largest programs make tons of $$$ for each home game. They want seven or eight home games annually, travelling only for conference games. Sure they can schedule more BCS teams, but those teams are gonna want a return game. The larger programs are gonna have less of a pool to choose from to get a I-A payday opponent. They're either gonna have to suck it up and play less home games, or they're gonna have to play more I-AAs.