Regarding your question, see below
To add to that, we don't do update estimates either. Pre-production is mostly done now and some production has started, which can be seen on the latest progress log (posted today), but pre-production takes no time in comparison to production itself.
If you wish, you can make use of the weekly progress logs to kinda guesstimate. Any guesses about a release date, using the progress log or otherwise, won't be confirmed nor denied. As stated we'll be sure to inform everyone once we know the release date.