Couple things that stand out to me, first thing being all of this seems to revolve around the JP worlds, with no mention of the EU/NA worlds. Meaning that this Sept. 4th update is likely for the JP worlds only, with the EU/NA worlds getting their update at a later time, if this wasn't the case then such an announcement would have been posted in the English forums as well.

Second, they are only considering a refund of days lost for those who have a legacy account? Is that some kind of sick joke?