Hoenn...
not my favorite region (that would have to go to Gen2), but certainly the one I remember best and have the most fond memories of
it was what made pokemon what it is today after all, with natures, passive abilites and the introduction of non-battle progression (I sunk SO MUCH TIME into those contests (fucking wobuffet always beating me in smart contests, destiny bond OP))
I hope we get to transfer pokemon from the bank to it, I still have my Master Cool Pikachu and Master Beauty Kyogre from Hoenn (they are my two oldest pokemon, the Pikachu has been part of my postgame team for every game since R/S, always with it's signature Red Scarf), it seems... appropriate that they finally get to return there
"Travelled Far Through Time" indeed, that pikachu has defeated team aqua and magma and escaped from a world where time stopped (damn berry glitch), seen galaxies born and die and vistied a world where everything is Not and even defeated GOD, witnessed the birth of gods and fought the incarnation of my past victories, seen the fulfilment of prophecies and the freezing of a continent, and even witnessed the world nearly come to an end. AZ has NOTHING on this Pikachu (hmm AZ, alpha and omega, clever nintendo ;P)
(wow, it's funny to think that I have pokemon older than FAMILY MEMBERS 0_o)
it'll be interesting if transferring a pokemon from the past version to the present unlocks anything, this is the first time it's been possible to make a "round trip" since you couldn't transfer from Gen2 to Gen3