No way in hell, LBP despite its popularity is not an established franchise and doesn't benefit from being developed by a known Japanese developer.
I'd be pretty happy with 10k - 15k units being shifted.
WKC is the only games I can see shifting a large amount of unit in Japan (just as Darth said).
Also this is the week of the DSI release, despite being two completely different platform, it has gotta take away some of PS3's thunder, there is only so much money consumer have to spend.








