This is from a blog from the owner of Dendy Cinemas Australia, which is Australias leading arthouse cinema, and is very credible.
It is dated 24th of May 2006
"So the Weinstein Company drinks event turned out to be a bit of low key affair. The most gob smacking moment for me was Harvey telling the assembled throng that they were planning to remake Kurosawa's masterpiece Seven Samurai as an English language franchise pic. No idea how they will handle the franchise rights but am sure we can look forward to Eight Samurai and Nine Samurai as directed by Tarantino and am still wondering where the original studio remake, Guns of the Magnificent Seven, fits into all that?"
Here is the link; under the heading "confusing tales from the south"
This link states that Ziyi Zhang has actually signed on for the remake;
Akira Kurosawa's movies don't need to be remade or turned franchise EVER