I must agree that the USSB has shown little of nothing, but DMG also has very little as well. Their empty announcement of a "possible" schedule over two weeks ago wasn't much. Sure they will at least have some motorcycles at some of the listed tracks, but not much more is for sure at this point.
No information on classes, much less rules for the classes. TV contract still pending and most importantly no Honda, Kawasaki or Suzuki. Every day that passes increases the likely hood that DMG and the manufactures will not reach agreement. I'm sure that some of the tracks letters of intent includes DMG delivering all the manufactures. IMO the extra tracks pending safety approval from a non existent person are backups against the tracks that may cancel.
At this point I doubt DMG will deliver anything worth watching. As far as TV goes, I'd rather watch WSB and MotoGP. If you want to see something live, there is always WERA and others.