If they want to resell it for the money, then I'd assume that it'd be around the release date of KH3, or probably right after. It's sure to attract a lot of people, casual and die-hard fans alike. Imagine how much the figure would sell, and the money this seller who has the figure in possession right now can get back as profit...
Generally art collectors wait longer than 1 to 2 years, we're talking closer to a decade so we'll see how this plays out, but trust me, by the time the figure is sold (if it ever will be), I'll be old and able to afford it (hopefully), so that's a plus lol xD