>>23148834the training island functions as a leveling facility (think black tower/white tree from bw2) where you can battle random AI trainers (with ever increasing levels), and offers a new method/minigame for easy and transparent EV-training/re-training.
up above is glorious battle frontier of course, with plenty of interesting facilities with unique playing rules
there is also an event area the content of which changes whenever GF feel like it (from offering some specific pokemon encounter, or some important trainer like Red showing up for battle, a guy giving out a "gem" daily, to some dude who gives you a high shiny-chance egg etc....)
of course there is shops with battle items and move tutors scattered all across this place, and BP to be earned at all facilities and areas.
and obviously this game has the same access to the same wifi, battle spot, gts etc stuff.
the game would receive an update every time a new main game comes out, for full compatibility and some other new features.