If we get through the regular season without major problems, there will definitely be bowls. And there will definitely be playoffs.
Why?
Because every single interested party will super-want them to happen. ESPN will be salivating. The players and coaches of the conferences and teams that played will be excited for them. The bowl host cities will be desperate for them (mostly). And the NCAA will by that point be wanting to reestablish some kind of normalcy.
There will be no one who doesn't want those bowls and the playoffs, except the teams and conferences who sat the season out. And they gave up their voices.
So sure, if we pull a regular season off, the post season will follow.
Go Vols!
p.s. The playoffs could look like this: Bama, Clemson, Oklahoma, and Tennessee (okay, maybe Georgia instead). In other words, just like every other year. Heh. We lose very little without the B10 or PAC, when it comes to playoffs. Just Ohio State laying an egg in the first round once every few years.
p.p.s. There will be less than the "normal" 40 bowls, of course. Some cities won't be in good position to host a bowl. Others will decline for political reasons, perhaps. The Rose Bowl will probably decline out of a sense of solidarity with "its conferences." And we won't need 40 bowls. The # of bowls can be pared down to match the expected # of eligible teams with a smaller pool of teams.