Also a new question:
In Quebec, people along Route 117 (between Labelle and Mont Laurier) are pressing their provincial government to twin the road, which is also part of the TCH network.
IMO, if their government is really willing, I can see route 117 twinned all the way to Rouyn-Noranda.
(Of course, if the government is willing for real, extending/twinning A50 will take priority, then twinning A20 east of Rivière-du-Loup, and completing the missing link between the 2 segments of 138, then wrapping up the A70 project. I really don't know where route 117 will fit in this to-do list, because it's the only direct route from Montreal (and Ottawa-Gatineau) to Abitibi-Témiskamingue but also because there are definitely other more pressing issues to address.
If Route 117 does get twinned to Rouyn-Noranda, though, how will that affect Ontario's decision on which route to twin? Specifically, how?
Again, IMO, I can see the AADT on 66 significantly increase, perhaps even to the point that a bypass needs to be built around Kirkland Lake area (including Swastika and King Kirkland). And lol, MTO will have to realign 66 around Virginiatown
once more.
But what about 11 between Kenogami Lake and North Bay then??