Hmm...just my opinion, but I don't really see a fit for Opie in LA.
The Opie & Anthony Show never had a Los Angeles affiliate station. Minus a handful of satellite radio listeners, the O&A brand likely doesn't resonate in the market. This reminds me of Scott Shannon's move to Pirate Radio in the late '80s, except that Opie has already peaked in his career.
For a station attracting a younger crowd, KROQ would not be an amazing fit as he's into his 50s and has not led a music-driven show since the early '90s. Unless KROQ is planning to pivot into a different direction or format. I could see him possibly taking a shift at a classic rock station or at a talk station. (Possibly KLOS or KABC?)
Again, this is all opinion. No facts. I also believe he lost his credibility with the Opie & Anthony fanbase after Anthony's departure from the show.