As my earlier post indicated, I'm most interested in how this all ends. That would tell us how things are likely to be for the next 5-10 years.
Money is the only thing that matters here, really. Regionality, longstanding rivalry games, travel difficulty, stress on student athletes, etc. - none of that shit matters. So if it's all about money, that means more eyeballs on TVs and butts in seats. That means better games, which means fewer matchups against cupcakes and lower tier, overmatched opponents that have less interest and lower ratings. Everything that has already happened is leading in that direction. So, yeah, two conferences with a combined 48 teams or so. Those two conferences are currently vying for all of the highest value properties. ACC is doomed; it's just a matter of time. Same with Big XII. Once it all shakes out, it's going to be an AFL/NFL type situation with perhaps a merger in the future to create a whole new governing structure and financial model. I don't know if all of that is good, bad or indifferent. For me, I don't want college football to become NFL lite. I don't watch the NFL now. Just too sterile for me and I don't relate as well to the fans.
Potential obstacles or things that could warp the gravity: ND - will they be better off as an independent even if there ends up being two super conferences? Antitrust issues - the lower tier schools who benefit financially by association with the bigger, more successful programs will have huge incentive to prevent this from happening and being left out of a spot at the trough. And what happens if the SEC gets the ACC schools? The SEC would be more way more powerful and richer than the B1G. Would that give the SEC total control to dictate the future of college football?