As I mentioned previously in the thread, there are 2 legitimate conventional bidders, CBS and AT&T Warner Media. Personally, based on all the moves we have seen recently, I would think that CBS is a logical bidder for AAC media rights. They could just buy rights from ESPN like they did last contract, but they may want more content. CBS has some SEC football games, but on any given Saturday, CBS has 1 to 2 slots open for football at either noon and 7/8 PM or both. They can throw the rest of the games on CBS Sports Network and/or allow the schools to sell more game like to SNY. As for basketball, CBS could show games and they could share content with their NCAA basketball tournament partner, AT&T Turner Media (TBS, TNT, TruTV) to show some games.
The streaming companies are a complete unknown as to what they are interested in doing, although we do have an Amazon exec comment on college sports rights that was highlighted in a separate thread. Will they bid? I don't think this round, but I think they will be bidding in the future on college sports rights.
On the comment that the streaming companies like Amazon don't currently have the ability to produce games. People made the argument that Amazon, Netflix, and Hulu were just streaming other people's content and content was king. Then they all started producing original content and some of it is pretty good. If they want college sports rights, they will build the capability to produce it. I think ESPN learned this lesson when the Big 1o Network started producing games.