I voted 90-94, my prediction is probably about 90.
From everything I've seen the game seems to do enough little quality of life improvements to appeal to the people who are already AC fans (inventory, graphics, decorating your house, etc.), but I think it'll also do enough bigger things to appeal to reviewers who haven't gotten into the series as much yet (island terraforming, more customization outside, more specific goals for you to do with those Nook Miles challenges, etc).
I'm personally not the biggest fan of the series yet myself. The DS one was my firet and I liked it fine for a while, but eventually got bored. New Leaf was a big improvement to me because it added more things that I could do as the Mayor (building bridges and other public work stuff), but I felt it could have even more.
So this one seems like it could be the perfect next step to hook me for a long time.