Well, the next James Bond movie is confirmed as Casino Royale, but Tarantino is not going to be involved. Instead, the Bond folks picked Martin Campbell who also directed GoldenEye.
Ultimately, I think this decision was made to keep Bond about Bond, and not run the risk of letting it become a Quentin Tarantino movie about Bond. It likely also relegates the series to just a bunch of ‘more of the same’ movies that will continue the legacy without enhancing it one bit.
Related: Ian Fleming’s novel – Casino Royale.