AC has a very small number of 319s that meet ETOPs requirements, used on the the aforementioned YYT-LHR run and on a handful of Caribbean routes. I would expect these aircraft will remain in the mainline fleet after the remainder are rebranded as Rouge ships ... or no? Perhaps ACYYZ/SD might have some further insight? One would guess the 767s would be used on Caribbean routes with long overwater segments providing demand is sufficient. AT has enough winter demand to fill its A310s.

Always liked the 319, but if the E90 can do most of the same routes at a lower operating cost, then that's a complete no-brainer.