The Grandia HD Remaster PC version will be slightly delayed and launch on October 15, so it can include fixes that will be present in the November Grandia HD Collection update.
The Grandia HD Remaster gives people a chance to play a JRPG that didn't receive many rereleases in an accessible format with the sorts of updates that highlight everything that made it ahead of its time.
GungHo Online Entertainment clarified how it is putting together the Grandia HD remaster and said it will be a 'definitive' version using the PlayStation code and "the Saturn version as a reference point."
GungHo hasn't shared an exact release date yet, but has confirmed that PCs will get Grandia HD Remaster on the same day the Nintendo Switch gets Grandia HD Collection.