Etihad Airways Etihad Guest - EY F class 77W

While checking EY schedule to LHR in AUG 2012, I noticed that they started offering F class service on their 77W to LHR.

Does that mean EY will introduce F class into the existing 777 fleet or the new planes will come equipped with the F class seats ?

I don't know the answer to that but last night I saw a commercial on TV about EY ordering a lot of 777s - so I suspect the latter.