I think Mizzou would have far more to offer than KU ever would...for one thing they offer the television market of not only KC, but the rest of Missouri including St. Louis. They also offer a natural border rivalry with not only Nebraska, but Iowa and Illinois. Let's face it, other than basketball, KU really don't offer that much financially or academically.
Texas is going to the Pac 10, that will be official Tuesday. A&M will either be in the SEC (most likely), or go to the Pac 10 if the gov keeps them melded at the hip to Texas.
The only way that I see the Big 10 doing anymore expansion for now is IF ND decides to come in, otherwise they would have to take two more teams to keep it even numbers...and I don't see that happening right now unless there is talk that the Big East and the ACC are going to come together and create a super conference, which ND might be interested in, so the Big Ten would would court probably Rutgers or Maryland to entice Notre Dame to go to the Big Ten rather than what ever the ACC/Big East would become. I think Rutgers will be in, mainly because it would bring the NY/NJ television market with it. Maryland would also be attractive because of it's ability to bring Philly/Baltimore/Washington areas. But my bet would be on Rutgers.
If the Big East/ACC don't make any moves for now, then I see the Big Ten being content for now just having the Huskers, to bring the number to 12. The SEC could force action in the ACC/Big East if it started looking to expand in that direction, which is a possibility, since the SEC has made statements in the last day or so saying they weren't just going to stand pat. Not sure if that meant they were looking for A&M/Texas/Oklahoma/OSU or what...but it sounds like three of the four have eyes for the PAC 10, which to me makes no sense, if they could go to the SEC. Makes you wonder what they are thinking, unless they are thinking that the PAC 10 would offer weaker competition, and they don't want to have to deal with the SEC schedule. Also, I don't think the PAC 10 is all that concerned about getting A&M since it already has CU, A&M would bring it to an odd number which means they would have to look for another team soon.
Don't be surprised if once the southern division teams find homes things slow down for a while...there is really no reason for anyone to panic...but if the SEC does go into expansion mode, expect many more changes to come.
Missouri has a lot of egg on it's face right now after basically being rejected thus far by the Big Ten...IMHO, after going after the Big Ten so openly and using them to try and leverage the Big 12. It may have been that arrogance that the Big Ten didn't like, who knows.