Originally Posted by DTWflyer

There is a lot of ambiguity in how the DEN concourse expansions and gate allocations are going to play out since UA and WN have basically requested as many of the new gates as possible.
The phasing and timing may factor in how this all plays out.

Short answer is that DL is not going to reduce their operation in DEN. The airport isn't dumb enough to say sorry DL no gates left for you.
They are likely either to move to another section of A or they may move back out to C. Nothing has been made public,
The SkyClub is really a non-issue too. On the first hand, while functional.,its a pretty spartan and generic club as it is now and its using one-third of what was originally to be a CO Presidents Club that has been split three ways into an Admirals Club, USO Club, and DL SkyClub with shared restrooms for all three.
If DL is forced to relocate, part of the negotiation is likely to be for the airport (and perhaps indirectly UA or WN) to pay all the relocation costs, and build-out of a new SkyClub if say DL has to move out to C.

DEN airport is kind of a hot mess with all the construction these days. The train overcrowding situation has gotten pretty bad at peak times.
As said, the A Bridge Precheck is only open in the mornings. Supposedly once all the construction is done, the A security checkpoint is going to move to the terminal side of the bridge as always have PreCheck open. That is still a little while out and who knows if DL will still be on A then, or booted out to C.