The game hasn't been released yet because the development team and Roy Meredith have decided that it needs further improvements before being released, as they want the game to be as good as possible.
No-one knows the new release date. It hasn't been confirmed, as the game, as far as we know, isn't ready yet.
Thus, the demo release date is also unknown.
Finally, will people stop opening threads regarding 'any news' or 'why haven't we been told anything for 4 minutes' and so on. Patience is required and they will tell us when they have info and in their own time.
We just need to leave them to it and wait until we next hear from them.
(Ponting- hopefully we won't have any more threads/questions to answer like this every day!)
Cheers