From Gematsu: “The PC version of Grandia HD Remaster will launch via Steam on October 15, a delay from its previously planned September release window, publisher GungHo Online Entertainment America announced. On the same day, the already available Grandia II Anniversary Edition (Steam page) will be renamed and updated to Grandia II HD Remaster.
Additionally, GungHo Online Entertainment America will release an update for Grandia HD Collection for Switch on November 12, which will address various user feedback. More information will be announced at a later date.”
Source: N4G PC Grandia HD Remaster for PC delayed to Oct 15; Grandia HD Collection update planned for Nov 12