The Sun Belt still also has the Little Rock/Texas-Arlington question - it would make sense to bring Missouri State in for football only, but the Sun Belt would rather have them for all sports. If the West can get NMSU as a full member, then that may result in a 12/14 setup with another all-sports addition to replace Idaho.
Back to the UALR/UTA situation, I still think that there might be the chance for the Sun Belt to offer one of the schools or both to add football membership for the league (if either or both of those 2 schools decide to add the sport), plus another addition of an all-sports school on the East side, just in case the SBC would get raided by C-USA in a certain future conference realignment event. With that being said, the following division format would consist of the following:
SBC East: Appalachian St., Georgia Southern, Georgia St., South Alabama, Troy, Coastal Carolina, some East-side school like Eastern Kentucky or UT-Chattanooga or Missouri St. (expanding states like NC, GA, AL & TN or KY or MO)
SBC West: Lousiana-Lafayette, Louisiana-Monroe, Arkansas-Little Rock, Arkansas St., Texas-Arlington, Texas St., New Mexico St. (expanding states like LA, AR, TX, NM)