I'd be shocked if he's not hired at Florida.
I'd proffer that he should turn that job down, too. Kelly just chose to imitate Pete Carroll over taking the FL job and it had everything to do with control and expectations.
The pressure for Frost to go to Lincoln will be massive. He may take it our of a sense of obligation. Depending on how many players UCF has coming back, I'd stay put for at least one more season, let the Nebraska job be filled by someone else and take a job next season. If Jimbo doesn't turn it around, FSU might be the place Frost has the best chance of success. Maybe Oregon opens up.
These coaches can be forgiven for taking the money from these big programs when they are hot but, most of these P5 jobs are set up for them to fail.