I just found out that there will be two new networks coming Jan. 1st, and the broadcast group associated with those networks is Gray TV. So, since they own WSMV and that WSMV has an opening on 4.2, one of them will probably go there. By the way, they are "The 365" an African-American focused network and "Outlaw" a western programmed network. I am attaching a link to the article I found below. Until more news breaks, that's all for now.
Jonathan Katz, Warner Bros. Discovery, Lionsgate, Gray Television Creating New Diginets & FAST Channels