Soraya Saga: Xenoblade Chronicles 2 is coming out in 2017: UPDATE Shulk's VA may have hinted lthat they are in the middle of localization

[Nuvendil]

Soundwave said:
Game looked very early/barren in that trailer, I dunno. Screams "delayed to 2018".

Some of it looked early, some didn't.  So I could see Holiday 2017 for Japan and 2018 elsewhere.  I would also be shocked if this was a worldwide 2017 simultaneous release though.