To be fair, they did say that the films were "being prepared in 2006" not that they were completely finished in 2006...
I have yet to hear a word from the WB yet. Since we're more than a year out probably from release, that's not an issue, but completing the NODS work will take several months, and the more time we have, the better it will be.
Carlotta needs to be done, and more Kate Jackson looping is needed. Plus all take editing, sync, foley, music spotting, sound mixing, transfer or scanning of the long version elements, dirt removal, etc. Much to do.
The piano scene was just a demo to have something to show at the fest. I'd tackle that from scratch going forward...