https://phys.org/news/2018-06-comcast-fox-favorable-att.html

But U.S. District Judge Richard Leon cleared the AT&T deal Tuesday despite similar fears. The ruling signaled that federal regulators might have a hard time stopping companies from getting bigger by gobbling up rivals and the content they own

Comcast isn't likely the only mega-media bid in the works. There will probably be a rush to consolidate. Even if a company doesn't need to get bigger right away, it might need to do so to prevent a competitor from doing so.