I think they'll need to figure out what the future of local TV looks like before they can think about expansion. Local TV issues are already making the Nats, Os, and Angels tough to sell. Any team assocated with Bally's is going to be tough to sell this year.
There won't be an existing RSN in North Carolina or Tennessee after 2024, and launching a new one is not currently viable, so I don't know how you can start up a new team without knowing what local TV is going to look like.