I will say that last week I had to fly TPA/CLE and back. It took 4 separate tickets to pull it off. TPA/ATL - DL. ATL/CLE - DL. Had 3 hour wait in ATL. I'm ok with that but DL website would not sell as one ticket.
Return, CLE/ATL - DL. ATL/TPA - WN
And this was leaving CLE at 11 am. As we speak now there are more TPA/ATL/TPA flights, but I think what I had to do last week will be the new norm for a while.
Safe travels and buy first if you want the front. I don't think upgrades are in effect.