Yes, Louisville and the Yum center would be the most likely candidate to challenge TN for attendance. Can't see uconn challenging for several reasons. Storrs is in a rural part of the state. The old joke goes, "it use to be called Storr, then they got another one." TV also hurts since all of their games are televised in HD, many over a nationwide cable network.
They also have lots of competition from pro sports since they are near the New York City and Boston markets. Also, the cost to attend a game is probably the highest in all of Women's basketball. Storrs is experiencing a construction boom, but I don't see uconn challenging for the attendance title, anytime soon. But they may lead in total viewership, because of TV.