When going over things this summer, one thing that stood out to me was the way that (probably unintentionally) Darren from Work basically took over HRR's spot on the show. He debuted shortly before Ronny's final call and returned early the next year as a regular character. Darren becomes the entry for learning more details about the Newbridge Version of Tom (and his first call is amazing), so it makes sense that he became a breakout character, though I've often wondered if HRR's voice was a pain to do. (On a similar note, PBR essentially took over Mike Healy's spot on the Show, even though Roy technically debuted first. But Roy picks up as a regular and quickly develops into the PBR we all know after Healy comes out of the rotation.)
I don't know that Ronny would make sense as a character on the new version of the Show given his origin, but this August will mark the 10th anniversary of HRR's final on-air appearance to date, so if we were ever going to hear from him again...