The first BA B777 (G-VIIY) will be off-lined to carry out the New Club World modification on May 5 2008.
The aircraft is planned to be back in service May 29, 2008.
The programme will include AVOD, new Club Seats, Club Kitchen and Microwave.
Once VIIY is kitted out with the new Club it will fly around for 3 months allowing any 'issues' like those that plagued the new cabin on the 747 to be ironed out instead of going full-steam ahead fitting aircraft with new seats only to bring them back in the hangar constantly for repairs/modifications.
I believe the same will happen when the New FIRST cabin is launched early 2009.