The only certainty in conference realignment is uncertainty, much like the only constant in college athletics is change.
Decisions can whipsaw on the whims of a board member or a president pressured into a ready-fire-aim strategy. When diagnosing the travails of modern college sports, the fact that university decision-makers have virtually no expertise in the billion-dollar enterprise they run on the side often gets overlooked.
So to say with any certainty that the Big Ten and SEC aren't on the cusp of more imminent realignment moves would be correct for now, but that's seemingly a temporary pause.