Was there ever any more information found out about this, regarding OT/ID and the other particulars?
FYI, Gen VI games' distributions are actually restricted by the cartridge region, not the language chosen at the start of a new game. So far, all local wireless and IR distributions I've encountered have not been region restricted, but Serial Code and Internet distributions have.
I believe it is possible for local distributions to be restricted, I just haven't seen it yet.