I am also curious. For a reason I want to say it is not Riku, because he has no bangs covering the front of his face, as he did when he had long hair. Maybe some devoted fan will compare the features with YX. Or maybe, someone else?
Sorry if this has been posted, didn't read through all 14 pages.
I'm more curious about who this is. Looks too old to be Riku. Looks too...not tan, and different hair style to be YMX..