My guess is that's when we'll start to see a move towards extending the playoffs. Like this year there were 3 different teams in the dance compared to last year (Clemson, Michigan State & Oklahoma). If in the next 5 to 6 seasons and there's not a team in the playoffs that hasn't made it before, it wouldn't surprise me the playoff committee looks to change that. Because eventually the majority of people outside of the 4 teams in the semifinals will get tired of seeing the same teams over and over.