I saw this topic come up in the other thread, and I recognize the university is doing a good job with the land locked area that is Austin.
The one thing your AD mentioned was bringing in temporary bleachers if needed, well the SR would of been a good time to do that, and if you are willing to sacrifice the food trucks for the series, that is the perfect area to throw up some temporary bleachers from 3b to the lf foul poul.
That's also the first place, that would be the easiest to expand seating and add more premium seating (club level or suites). But going all the way down the LF line would look odd if you didn't balance it on the RF line.. and looks like there is a lot more going on over there.
Concerning the outfield, since it's just a minor service road, it appears you could likely move it closer to the tennis facility and then add some LF seating if a permanent solution was needed. RF... no way with Comal there.
In the end it comes down to support year round, not just 2-3 series a year. A problem even the largest stadiums.