More likely that the AC YYZ-DUB-YYZ would convert to the LCC than risk new launch at BFS
The seasonal YYZ-DUB-YYZ already was a hint of what might be to come, using a 767 that hadn't received Air Canada's XM ("eXtreme Makeover") interior. Without lie-flat J or the personal IFE, and the old J cradle cabin was sold as Economy Extra instead of J.