9PM-Midnight is a death slot for talk hosts. Most AM stations are running at reduced power with reduced coverage at those hours. Some literally on flea power of a few watts.
Yes, 6-9 out west though. And in NYC Cumulus is buying an FM (WFME 94.7, from Harold Camping’s Family Radio). May wind up there but perhaps not for awhile
Savage will own the time slot. And Cumulus owns some fairly substantial stations; it’s likely they’ll want to have Dr. Savage on their O&Os.