[quote:836d724150="dord1"]what is the ???????[/quote:836d724150]

I believe it relates to the blank space that there is in the picture under the Japanese word that means "Design", which is the third staff role being listed. Whoever translated the whole text for the sost website must have thought that there was really a role missing with that blank, so he put those "???????" in place. 

But actually, and keeping in mind that Reiko Kodama (wrongly translated to Kata) was also a designer in the same vein as Naoto Oshima was  (the translator actually forgots to mention the third designer, Jina Ishiwatari), the missing blank of the picture, replaced by "???????" in the translation, is just extending the "Design" role to a couple of more designers aside Naoto.