In the last book, they discussed buying a fixer/upper home in Israel. Maybe a new series focus - Fix it or Kill Them! I don't see Olivia moving to Israel though, LOL. The problem with the small town move is that the crimes to solve are forced in plot development. In LA or NYC you have a big enough venue for weird things all the time.
Back to L and O, since Ice-T is appearing in lots of commercials, he sees the writing on the wall. The rest of the cast aren't that good to come up with another good role, IMHO. Anthony Anderson was good enough to do that. Noth was too. I don't see blondy and skinny going far.