Scottish yards to be saved by FSC?

The chief executive of BVT has said that they are close to signing a deal with the MOD for the Type 22/23 replacement frigate the Future Surface Combatant which will keep the 2 Scottish shipyards under threat open after the completion of CVF. Work could begin by as early as 2013 he added and would help guarantee 15 years work for the yards. Seems a bit soon to be honest and what exactly would they be building?