I would ask the following questions. I don't think they're controversial at all, just personal but I know there's no chance they could be asked.

Do you still believe in the saying "The bigger the star, the nicer they are"?
What would Jon from 20 years ago think about the Jon today? What changes in yourself have you noticed?
Do you miss hanging out and talking with Richie?
What hapened to your voice and can you get it back?
What would it take for Bon Jovi to start selling concert footage/recordings from 20+ years ago online for the fans?
Would you let a modern "Pizza parlour jury" consisting of most die hard Bon Jovi fans pick material out of "The vault" for a box set commemorating 35 years of Bon Jovi?