The hold-up, apparently, is with Michigan. There is a great deal of concern that they can return to the level of excellence that they have experienced in the past, which makes the the split difficult. The basic idea of seperating OSU and UM was to allow for them to meet in the conference title game. If UM can't win their division, well...
After seeing Michigan practice, and emergency meeting was held and a new conference split has been discussed:
A:
Ohio State
Penn State
Nebraska
Iowa
Wisconsin
Mich State
Minn
Purdue
Indiana
Illinois
Northwestern
B:
Michigan
The BigTen ADs are working out the exact logistics of this alignment right now, but, with this split, UM is expected to win their division and go to the championship game "most of the time"...