I think the rankings are just as likely to go down as up:
Up till now, the VAST majority of these machines have gone to home collections.... hard to imagine anyone that waited 3 years for delivery to rate it poorly after that wait! .
So, as more get into the wild, you may see less emotional reviews/ratings....
But, then again, given the amount of hate-rating that goes on, its hard to give much credence to games like this that are lightning rods for emotional opinions .
The real test will be how many Woz's go (or dont go) up for firesale once TH starts shipping.