I really wonder what is SO big that they can call it "the scoop of the century". I mean that would mean bigger then fairy, pokemanz in 3D, double/trple/rotations etc etc. I just wonder if it's a competetive change or a gameplay change, since we are focused on competetive mostly but forget the non competetive aspects sometimes.
Maybe you can finally start with any pokemon that has 3 stages and is native to the region. Or you can now choose a pokemon from multiple rock-paper-scizor triangles. e. q. You could choose from the classic grass-fire-water or you can choose a pokemon from dark-psychic-ghost triangle.
This would qualify as "the scoop of the century" in my book.
Also they could just simply tweak the typechart.