First of all, the studies done in the past have focused mainly on the southern provinces. They haven't looked deeply at the territories in terms of population distribution or geography. Therefore, national representation will be helpful only for the southern provinces. I have already read about MMP and I learned from Fair Vote Canada about different types of representation, and they're talking about topping up and then local representation, which will not work for the three territories.
Three territories have all the same rights that any of the provinces in the south have, which has never been considered. It has repeatedly been asked how three territories can become one for the purposes of regional representation. Consideration of that idea shows how little consideration has been given to the territories, and politically they are far behind right now. If you want to fill the gap, you'll have to make some dramatic changes.