Yes, at least the WWE Championship should. I don't agree with the world heavyweight championship going on first though. It should be like it used to be. WHC going on 3rd to last, then a divas match or something that nobody cares about so everyone can recover, and then the WWE Championship going on last. The only cases where it should be acceptable to not do this would be a Undertaker streak match (and they don't even do this), or a once in a lifetime match (like Rock vs Cena).