Reasons to think that Kansas won't eventually play Missouri again:
SZ has stated that they won't play teams that left the conference.
Reasons to think that Kansas will eventually play Mizzou again:
Kansas has already scheduled Colorado (the first team to leave the conference).
It's one of the oldest rivalries in sports.
The SEC and Big 12 have recently entered into a football partnership.
The SEC and Big 12 have recently entered into a basketball agreement.