" ... as well as adding even more seats for sale through the introduction of larger aircraft."
Maybe we'll see some of the redundant A321's being brought back into service? How may a/c are baby operating at the mo- there seems to be a lot of substitution with F100's.
What they mean is that the prague route is currently on a fokker 100 and will be going onto a baby 737. Thats where the extra seats available come from.