Second tweet link contains preliminary cover for the first novel.
Apparently, they're publishing parts of the first vol in Da Vinci mag issues 11 and 12 (Oct and Nov 6th release) as part of a special. Comments on 2ch haven't been very revealing about any diffs between the original and the rewrite from what I saw, but I think most people are really waiting to see how things go from the second vol onwards. I know that's where I really started getting interested in the series. ^^;