The Wind Waler did get the same treatment (2003-2013 is 10 years), but I think that was more a surge of inspiration on part of EAD rather than a dedicated resolve to remake the game. They even said, they were driven by the aesthetic appeal of the HD cel-shaded style.
I think it's too early. The game isn't suffering by any means, and it's harsher criticisms have been steadily giving way to fond memories and praise for some time now. I think a remake will be most warranted when this comes full circle, and a remastered version will be welcomed with open arms.