As of Pokémon Direct, aired today, Pokémon Sun and Moon have been confirmed as not only official…but the next core generation.
Newest Generation of Pokémon Core Series Games Coming to Nintendo 3DS Holiday 2016
This will mean a new region, new Pokémon, and new characters. PokeBank functionality is included and transfer between S/M and R/B/Y will be possible with the virtual versions. Transfer from ORAS and X/Y will be PokeBank exclusive, apparently.
That sucks for me. Oh well…