For the first 4-5 years it'll be mainly training exercises - then back in as "harbour training vessel" and then refurb while the PoW does the same working up routine
The question of how the RN was ever going to man these ships with the financial constraints in place runs through this thread like the words in a stick of Blackpool Rock - see post #14 way back in 2006 for example
Now they are coming into service I guess there is a lot of head scratching going on as to how to distribute the available manpower