I saw the below answer on another web site
My wife and I are going on same itinerary but the cruise before you (we depart on March 13)
I asked Princess about this because my wife loves The Sanctuary on Crown and Emerald
Princess them selves were not sure whether the refurb was going to be done in December (in which case it will be there when we cruise) or at the end of March before the Grand moves from Caribbean to the Med for the Summer. They thought it would be at the end of March
That is why the brochure says "from April" for Med cruises.
So probably not there for us in March
Maybe worth while asking again
The ship is due to go into wet dock in December 2008 for a five-day refurbishment. For the most part, updates will focus on new carpets and upholsteries. However, an exciting new addition for Grand Princess will be The Sanctuary. The gazebos and massage beds will be fitted up on Deck 16 (forward), close to the Lotus Spa and pool, so all going well you should see it when you join the ship in March.
I called princess cruises again and although they could not be 100% sure, i was told that when it goes into wet dock in december, evertything should be completed on it including the sanctuary.it would be nice if someone out there could give me a definitive answer.