Rough figures, but... around 6 ATR Capt's retire over the next eight months, and well founded rumours are of the arrival of another jet, so 2 or 3 'age eligible' Capt's may be off to the RJ together with 4-6 of the ATR F/O's.
Some of the Capt's also job share, all in all nothing too sinister, so pls lets not get into another 'BA and their overheads' type thread.