Could this be why the Big 12 television lineup has not been announced? Possibly. FOX could be trying to clear those games on alternate networks, either nationally or regionally in those markets. For example, FOX Sports Local does have a partnership with NESN for news content. MASN could be an option, but FOX could be negotiating with Comcast.
FSN did lose a large amount of collegiate programming when the Pac-12 and FOX moved its content to F/X and FOX broadcast network. The Big 12 covers some of the losses in football, but the loss in basketball was approximately 30 men's games and several women's games.
Fans who are in market for CSN Mid-Atlantic and CSN Chicago are the ones who are concerned. CSNMA would serve pockets of fans who are West Virginia, Marshall and East Carolina fans & CSN Chicago would have some effect, as I understand it, towards Iowa St. fans. Iowa St. & ECU appear to have been tentatively set for FSN telecasts during week one. In general, it affects anyone who wishes to watch these games.
Will be interesting to see whether fans who are in market for the five RSNs are also blacked out of FSN content by paying for sports packages on satellite or telco operators. The interesting thing is that the dispute isn't between the cable op/telco/satellite provider and a channel, like when Dish Network and FSN had a dispute, but between a channel and its content provider. Bears watching.