"Our next 'public' gig will be when The SAS 'House' Band will be backing an array of stars in Madison Square Garden, NY city for the next Nelson Mandela 46664 Concert for aids. Stay tuned for more information and a line-up of artists."
Spike says that the concert will take place before the Gosport 15th anniversary celebration gig on July 30th. There is no mention of a possible participation of Brian and Roger in the 46664 gig.
source
http://www.sasband.com/