Justins main problem is the Liberal brand and his father - are both loathed in Quebec and Western Canada and no party can win a Commons majority today without being competitive in both regions.
At present the NDP holds the majority of seats in Quebec.
Next year’s election will be decided by Ontario - the classic Canadian swing province will have 121 seats in the House Of Commons.
Conservatives have a majority there now and they can expect to make significant gains in fast growing British Columbia and Alberta.
The Liberals have only 39 seats so the road to a strong minority government means the NDP has to fall off its current all-time high.
Odds are better for Canada’s first federal NDP government than it would be for a Liberal return to power.
Lots of land area/few relative votes.
You may be right that the PQ/ON/Vancouver voter mass will give at "best" a minority government or at worst, some coalition one.