According to an announcement posted on their website, Will Tuckett's immersive Nutcracker is now "on hold" and will not receive its premier this year. Apparently this is due to an investor pulling out, and no new sources of funding available. Ticket holders will be issued a refund, but if you have a ticket you may want to contact them just in case.
This is a real shame for all involved, especially at such a late stage. Fingers crossed for next year.