A330
It has been rumoured in Northern Ireland that the comment on no A330 based "outside Ireland" was a smoke screen to hide the move of an A330 to Belfast as depending on your political view is not out off the island of Ireland but is out of the Republic of Ireland but in the United Kingdom.
BFS-SNN-YYZ or BFS-YYZ HAVE been mentioned as possible routes as has BFS-DUB-SFB from some of my collegues in Aer Lingus