Someone at a Viz panel did ask if they're looking into translating the Data Books for their various series like One Piece. They went on and on about some japanese Naruto Fan Book they're bringing over but they did say they were looking into it.
Hmm…. There has been a data book released of sorts for Naruto. I know because at the last Expo (big conventation, I think it was back in Oct/Nov) here in the UK there was a member of my anime club who went with us who was reading it. He wouldn't shut up about it. He kept quoting things out of it.
But a One Piece release... Maybe the second one will get released, but they may skip over the first. But all means, that should have been released a while back in anime/manga timeline concerns. :wassat: