Austin is just a different kind of city, a bright blue island in an otherwise mostly red state. Education/skills/sophistication a few notches above other metro areas in Texas. Classical KMFA has been going as a non-comm for 54 years.But I can't help but notice that even San Antonio, Austin, and Dallas have classical radio stations; what's different about Houston that it can't have a classical station? Just curious.
San Antonio's KPAC is still chugging along, but has replaced most of its local origination with Classical 24, IIRC. It is owned by Texas Public Radio, which also operates news/talk KSTX.
The future of WRR in DFW is murky. The City of Dallas, which owns the station as a commercial operation, has been losing money on it for a number of years now, and wants to spin off station operations to a third party. Anyone's guess as to whether new operators can solve the financial problems. We should know more in the near future.
I enjoy Classical, but demographic change and shifting music tastes are pushing it into oblivion. Its future, if any, will probably be on national streaming platforms where the economics make more sense.