Indifferent to QR scan thing. I don't know if maybe something more can be done with it to make it similar to DexNav, but right now it just sounds like you scan a code to learn a location. I rather just find what's around by exploring myself. Plus QR codes have always gave me difficulty.
I'm not surprised the Pokedex is split up, I was pretty sure we'd get four island sections and each has it's own Pokedex and it seems to be the case. People have been throwing around 300 Pokemon in the Pokedex overall based on the 1%, I hope some way it'll be more because I simply like to have a large selection to choose from, albeit, 300 is still a lot.
I don't care too much what older Pokemon are in the regional dexs, but I hope they and the new Pokemon get proper placement since there are always a handful of Pokemon that just kind of get the short end of things. Also not sure if I want some of my faves in the dex or not, because on one hand I would love to go through the region with 6+ of my favorite Pokemon, but I would also like to use Pokemon I haven't really used before.
I hope the Pokedex will have more use overall as well, it seems to function as a map as well so there's that, but I don't know, having more info on the Pokemon, maybe have some kind of mini game in it, I'd just like more reason to use the thing.