The support email for Dragon Commander is supportdc@larian.com, which would be forwarded to me.

There were several updates to the game engine to improve 4k support in D:OS. Adding those to DC would mean getting the new version of the engine working with the other components used in DC, or reverting to the previous version of the engine and redoing those changes. I don't know how long that would take, but even if it was relatively quick, it would still mean one or more programmers taking a break from D:OS to do, and the update would need a round of QA to make sure everything was working.