This is interesting.
If they go, they will want access to a big TV market. The Big 11 network is trying to get into a basic cable package as opposed to being a premium package. However, comcast, et al do not want to pay the fee (based on homes served) and have to pass that cost along to consumers who may not want the channel. The network wants it to be on basic cable packages so that it can go to sponsors and say "Look we are in 1 million homes" as opposed to premium where they know excellent how many homes they are in.
I cannot think of a logical team that brings in a large market except Missouri (that brings in St. Louis). However, I do not see Mizzou wanting to make that jump. They struggle in the Big 12 North (what has been a weak division) and I cannot see them doing any better in a Big 10 West (Minnesota, Wisconsin, Illinois, Northwestern, Michigan or Purdue?).
Louisville is a growing city and pulls in the whole state of Kentucky. However, they just jumped ship and I wonder if they would be willing to do that again--there is probably a cost involved if not just in changing letterhead.
I wonder if Kentucky would be interested in jumping ship. That would create another ACC-Big East-Conference USA type shuffling as the SEC would then need to find a replacement or stay at 11 teams and lose the conference championship game (something it would not want).
Pitt does not seem like an appealing prospect as it probably does not add a lot of TV homes.
Rutgers might be appealing as that gets the Big 10 into the New York market. Of course Rutgers might find it tough going in the Big 10 year in, year out. It just got competitive in the Big East. Also, they might not want even more Big 10 schools recruiting NJ. Penn State learned this when it joined the Big 10. All of the sudden PA kids started getting recruited by Michigan and Ohio State and Ann Arbor and Columbus are far more appealing places to live than State College for a lot of people.
The idea of two divisions with a conference champion might not be so appealing if the BCS adopts the plus one format. It really would eliminate almost any possibility of the Big 10 getting 2 teams in the final 4. I am thinking about 2006, it would all depend on how the divisions are drawn. If OSU and UM are in the same division (I cannot imagine that being the case), the OSU would have played Wisconsin in the championship game. Only one would end up in the final 4. Michigan might have been able to stay in the top 4, but it would be hard for me to take a team that did not even win its division much less conference playing for the national title. (Who remembers the Nebraska fiasco a few years back where they did not win the Big 12 title, but they played in the BCS championship game?).
I also do not think that going to 2 divisions is a must even with 12 teams. The Big 10 in football plays 9 teams in the conference. I think each school has a set number of traditional rivals that never rotate off and the other schools rotate so that in some years some schools do not play 2 schools. They could just change that rotation.
There has been talk in the SEC that the championship game hurts the league. It is widely accepted that the SEC in most years can get 2 BCS bowl bids, but with a championship game one of those teams is often eliminated.
It really impacts basketball more where teams then would have to drop 2 out of conference games. This has been an issue in the ACC where they do not play everyone twice as they used to in order to keep out of conference games.