Canadian PM Justin Trudeau denies he wants electoral reform simply to entrench his party in power. It is not a good defense to have to be playing when you are committed to the next election being under a new system.
While he says he has no specific model in mind, it sure seems like he favors Alternative Vote, based on a few of the points in the linked article:
“During the Liberal leadership race, Trudeau expressed a personal preference for ranked balloting.”
“Trudeau said he feels “very strongly” that a reformed electoral system should not weaken a member of Parliament’s connection with and accountability to constituents in a specific riding.”
“I’m wary of disconnecting any MPs from specific groups of citizens or geographic location. I think that’s one of the strengths of our parliamentary system and as soon as you get into lists by parties or groups you have people who owe their election to the House of Commons to a partisan organization rather than to a group of Canadians.”
He also has not ruled out a referendum, but apparently prefers not to have one. Also, a weak position–it seems an admission that it would lose. I follow a discussion group about electoral reform in Canada, and it is striking how vehement the opposition is to a referendum among many of the people who frequent the discussion.
I don’t have a particular view on whether there should be a referendum or not, but I would be concerned that a system adopted without either cross-party consensus (which looks hard to achieve) or a referendum (or both) would be highly vulnerable to repeal if the Conservatives came back to power at a time when the question of the electoral system remained contentious.