It will be interesting to see where the 3 class unit comes from?
EK will upgrade daily flights to FCO, DUS, BLR and HYD from A332 (all 3 class) to A343/ B777 from 1st December.
Some will needed for the new flights to FRA and HKG starting December but I think one frame will be used for DUB (even thought it starts in January).
On 1st January DXB-PRG will be upgraded from A332 to B773 but this is a 2 class A332.