BA have stated that they will only accept wing modded A380's thus muddying the waters as to when they arrive.
Pilots have already been converted to the 787 and are running on the 777 awaiting a differences course. They are already in the Summer 2013 plan and accounted for in personnel planning.
There options for the final 2 777-300's are also in the plan. They next step is either the 777X or the XWB350, neither of which are ready.