At the moment it's up to date and high standard, but in a few years some of the shows may be cancelled, leaving the area outdated. Obviously I don't know when/if this will happen, but the area would need a retheme or a refreshThey will probably want to keep on renewing it, it is of an high standard for a children's area.
I think it's usually 10 years, but if they will extend Charlie's contract, they will extend anything's contractno idea what the contract length.