KEGL's ratings have only gotten bad within the past 9 to 12 months or so. That said, Russ was clearly the star of the station.
The last time KEGL was without his services many years ago, the ratings tanked and they flipped to Sunny (soft AC).
I am a little surprised iHM is unwilling to go the Urban AC or Reggaeton routes. iHM has some marquee Urban AC stations in its stable. They evidently want a format that will be complementary to Lonestar 92-5.
If indeed the music disappears from 97.1, it wouldn't surprise me if 92.5 makes a small tweak, much like 103.5 did in Denver when 106.7 went Country.