Some guidance came from the NCAA today:
If you can see this refresh the page to see the embedded tweet.
So, in a nutshell, leagues that need 9 weeks to play 8 conference games (due to having an odd number of teams) will need to start by Saturday 2/20 and teams that can play league games 8 weeks straight would be able to wait until 2/27. Playoffs (reduced to 16 teams) would start 4/24 with the national championship game on 5/15.
Many teams that play outdoors are going to have to come up with contingency plans for an indoor venue I'd think. Not just because of weather possible that time of year but if we have a really snowy winter in this part of the country stadiums might be buried by mid-February. Gotta hope for the best but there's a lot of hurdles that come with this spring schedule.