Have you seen number 8 yet? Hard to imagine, but it gets even more ridiculous. The next one might take place in outer space.
Not yet, no, but I'm already grinning about whatever it is they came up with. Need to check it out asap.
I remember reading somewhere that 9 will be the last one, so if the movies follow the trajectory they're on they really have to come up with some outlandish stuff for the last one! Which will probably not be a problem.