I had actually forgotten about this one - it kept going after I left, and someone posted that the two new members would be LaTech and Texas State, which led to this brilliant piece of analysis:
The additions of Texas State and Louisiana Tech would shift the western division slightly. I wouldn't be surprised if these additions are intended to keep North Texas from leaving. I also wouldn't be surprised if North Texas really had not desire to leave the Sun Belt for The Alliance. I suspect The Alliance could be unsuccessful in plucking members from the Sun Belt even those you'd think would be ready to go. The CUSA/Mountain West Alliance isn't as glamorous as it's being painted to be in comparison to the Sun Belt.