https://www.espn.com/mlb/story/_/id/39146754/mlb-free-agency-2023-24-rsn-tv-diamond-sports
The important part if you don't have a log in:
There will be at least three -- the Padres and D-backs once again and, sources said, the Colorado Rockies, who have been left without a TV deal now that Warner Bros. Discovery has essentially left the regional sports business. The Minnesota Twins, whose Bally Sports contract expired at season's end, could also join MLB for the 2024 season. So might the Texas Rangers and Cleveland Guardians, two teams Diamond will likely shed this offseason.
Based on what's being said here, it sounds like revenues will be impacted (estimated 20% of team revenues come from local TV rights) but MLB will make sure games continue to be aired in local markets, whether it's a cable channel or in network streaming through MLBTV, which is what they did last year in AZ and SD.