Originally Posted by Chiangi
NH also opens up this cabin if they have seats available to NH's elite fliers on the day of departure. Not sure if they would do it for other * alliance elites. Hope someone else would be able to answer your question.
In my experience, they don't offer it to other *G - A couple months ago I flew NRT-LHR-NRT and there were some empty seats in the Premium Y cabin. My *G status got me seats in the exit row, but not in the Premium Y cabin.