Jon will keep the brand name 'Bon Jovi' no matter who is in the band I think. He's invested too much time and money into the brand to let it go. He owns the rights to the name, probably in a similar way Axl kept on GNR.

I don't think if band members left it would affect ticket or album sales immensely so Jon would carry on regardless - maybe with some of the diehards, but to the casual fan they probably won't care.
I'm not a huge Bruce fan, own maybe 3-4 records and have seen him twice in concert. I didn't know if the Estreet band played on those albums or not, or if they going to be at my concerts or not. And I couldn't name most of them either, except Steve.

I know Bon jovi is not a solo act like Bruce, but my point above is that to many casual fans he is.

But as to what I personally think should happen, I've said it on here before. Jon goes solo, aims for the smaller theatre sized venues or arenas, gets a new band together and/or Bobby, Lorenza etc and record new material, and play what he wants to play.

Andi