If it's truly rehab then it wouldn't matter how long he's in there for. He may need time to recover at home before throwing himself back on the road. That's what he did last time and it didn't seem to work with him. But I know next to nothing about alcohol addiction or whatever it is he's in there for.

I really thought he was doing this because he wanted to promote his own stuff but by taking himself out of the band picture he can't really go out and shill Aftermath. At least stateside he has no audience. The Bon Jovi fan base is his bread and butter and he knows it so doing anything to piss off the organization would bite him in the ass.