c'mon, he was looking pretty bad near the end of his career, can't see him making much of an impact now. Maybe as a short term gig...
Physically, I think he's done. I noticed he qualified his return plea with the phrase, "in any capacity." To me, that suggests he's opened to the prospect of a possible backstage role.
I've mentioned before that I believe Roberts would be an invaluable asset working with the younger, clueless talent, and providing creative/directional input in general.
Just for shits & giggles, though...if Jake could pull his shit together and get in shape; imagine the kind of numbers a Jake Roberts/Rock feud would draw!