Kane is the perfect example of a wrestler that is better away from the title than with it. His character is built in a way where a title isn't really necessary, and he never really had a good singles title reign in his career.
Like I've said before, I'm sure he will. HHH/Vince can't possibly be that dumb to ignore how OVER he is right now. Sells merch, delivers on the mic and obviously in the ring. Complete package right there.