It will be a 757. All the flights out of YHZ are on 757s for the winter, except the Thursday flight to MCO (Orlando). I'm flying YHZ-PUJ (Punta Cana) next week. Read the post under the "Canada's worst airline" heading in which I talk about tight scheduling at Air Transat. On some flights out of Halifax, they've had to use Royal aircraft to catch up...
For your info, here's the 757's schedule out of YHZ for the winter:
Mon. : YHZ-CUN-YHZ / YHZ-POP-YHZ
Tue. : YHZ-PIE-YHZ / YHZ-VRA-CMW-YHZ
Wed. : YHZ-YYT / YYT-PIE-YYT / YYT-POP-YYT
Thu. : YYT-YHZ / YHZ-HOG-YHZ / YHZ-PVR-YHZ
Fri. : YHZ-AVI-YHZ / YHZ-CUN-YHZ
Sat. : YHZ-POP-YHZ / YHZ-PUJ-YHZ
Sun. : YHZ-VRA-YHZ / YHZ-PUJ-YHZ
A lot of work for one single airplane!
Next flights: YQM-YOW-YOW / YQM-YYZ-CPH-YYZ-YQM / YQM-YUL-LYS-BRU-YUL-YQM / YQM-PUJ-YQM