Is it logistically possible that football occur in the spring? Honest question, have no idea. It would be weird but better than losing a whole season. Still a lot of time between now and fall though so hopefully things get under control.
Logistically, maybe. It would be a nightmare to schedule for a school that uses one facility for football/soccer/lacrosse (not to mention a nightmare for the staff that has to take care of a grass field) but I think bigger schools could handle it without much of a problem. TV would eat it up. The XFL got decent ratings and great fan support in many markets before their season was cancelled. Americans love football, regardless when it's played.
The real problem would be, how short of a season do you make it? As physically demanding as football is, I don't think you can have a full season in the spring and then expect everybody to come back healthy in the fall. Plus, how would coaches get out on the road to recruit and still be around enough during the week to coach their current guys?