Well, it might be, given that D3 Publisher went so far as to do their gameplay trailer dubbed in English (check it below), with Japanese subtitles instead of the other way around. This doesn't happen too often for Japanese games without plans to cross the pond. That said, D3 is still mum on any official announcements. For all we know they could just be doing it to give some local English-speakers a temp job.
Still, more otaku-pandering feather boa action on your Xbox 360? I'll take some of that (if I ever get around to buying an Xbox 360).
Check out a preview of the game from our fine pals at Destructoid.
[*].disqus.comto your security software's whitelist.