Carroll, Dunn, Demings, and Crist all succeed in flipping seats. If Democrats can't beat Coffman this year, then he has that seat locked-down essentially for life. If Democrats can't beat Jolly this year, then Charlie Crist is still a hilariously sh**tty politician.
If Jolly somehow pulls this, I think the NRSC will try to recruit him for Senate in 2018, and national Republicans will coalesce around him.
National Republican actually don't really like Jolly, considering he's basically started a war with the NRCC over fundraising. And I also am doubtful Jolly would run for Senate if he wins this year; it seems like the only reason he ran for Senate this year was because his district became much more democratic. I think he may want to stay in the House and not risk a senate loss.
But then again, none of this will likely matter, because I think Crist will defeat him this year anyways.