the flights remain for sale. UA is not using its gates to their capacity.
I stand by what I said that when DL pulls their flights and decides not to pursue it further, you can crow.
and further, WN got nothing which is what I said all along. UA cannot be force to accommodate WN; they can be required to accommodate other carriers that cannot serve the airport.
As of right now, DL has no lease. Given that UA hasn't published a schedule and has no lease, I still expect them to be accommodated at UA's gates.
And actually, IIRC, the gates belong to ExpressJet, not UA, who operates DL's current ATL-DAL flights. ExpressJet continues to struggle to meet operational requirements for DL but DL seems to be getting better performance out of them than UA is.
Don't rule out that DL's future relationship with ExpressJet might be connected to access to DAL.