It all depends how you define the band. To me the core of band sound was Jon and Richie. Tico and Dave too, but to a lesser extent. Personally, I feel that without Richie it isn't the same band anymore. If it was my choice, I would have ended the band when Richie left and have Jon continue as a solo artist.

However, that was never going to happen and I have no doubt that Jon will continue if either/both Dave and/or Tico decide to call it a day and still call it Bon Jovi.

Personally, I feel like he can't carry on for a huge amount of time as a live act due to his rapidly declining vocals. He could still make records (again, preferabley as JBJ not BJ) but I can't see how he can tour for another 10+ years.

In a perfect world, one last farewell tour once he can play to full arenas again and I really think it should be left there as far as the "band" goes.