This game is really not that restrictive. Three days when you slow down time gives a lot of time to do Snowhead and Southern Swamp in a single cycle. Some casuals could probably even accomplish that. Greta Bay and Ilkana will take two cycles, Ilkana because of all the crap you have to gather and Great Bay if you don't get the Stone Mask. Casuals may take 3 cycles for Great Bay and Ilkana 3 or 4. It is balanced enough that you don't have change anything with the possible exception of saving anywhere you want, but I wouldn't even do that. Not all casuals may latch onto it, but that is why they are adding that "improved approachability".
Anyway, I think this should have been a N3DS release, but I'm not going to look a gift horse in the mouth. I'm so fucking happy and I hope America also receives a special edition.