Not to sound speculative, but I do think the prospect of networks dumping affiliations with certain station groups is becoming more feasible. The networks (except for Fox) are already able to distribute “network-only” feeds of their programming; ABC did just that when Sinclair and Hulu had a carriage dispute last year. Sure, it might be a loss for OTA viewers, but I’m sure the networks would find a way to get their feeds carried on streaming/cable. It’s not as though the networks care that much about OTA antenna viewers anyway; if they did, we wouldn’t be seeing Peacock-exclusive NFL playoff games.
I don’t see it happening anytime soon, but I do think there will come a time when the networks won’t need the affiliates, especially if they’re run by a company like Sinclair. I’d be intrigued to see what the TV landscape looks like 10 years from now. Disney can’t be happy to associate with Sinclair, and I imagine if the opportunity presented itself, they’d want to rid themselves of that association.