Interesting, I've never been up that way. Are you just gonna to to Kegaska then turn around and come back the same way, or is there a ferry you can take somewhere from there?
They're supposed to extend hwy 138 all the way to Labrador so the Trans-Lab can be a loop although that's probably 5-10 yrs away.
It's a trip I've wanted to do for about 10 years actually, but I was always busy in the summers and couldn't get time off work. Now I can get the time off and this summer looks like I will be ok with family stuff too, so it's just covid that will determine if I can go.
I didn't know that they were planning on completing the road all the way over - that would be an awesome loop.
For this trip I was originally thinking about doing some loops in the Saguenay region, then going all the way out to Kegaska & Manic Cinq and then coming back to Quebec City before deciding whether to head over to Gaspe or making my way home. I've read that the speed limits can be slow and there are many small towns, so the daily mileage is not very much, but it can take a longer time to do it and enjoy it. Something like this:
Day 1 - Mississauga to La Maurie National Park - 866km/12hrs
Day 2 - La Mauricie National Park to Chicoutimi - 525km/10hrs
Day 3 - Chicoutimi Loop 1 - 560km/10hrs
Day 4 - Chicoutimi Loop 2 - 500km/8hrs
Day 5 - Chicoutimi to Sept Isles - 800km/11hrs
Day 6 - Sept Isles to Kegaska - 420km/7hrs
Day 7 - Kegaska to Baie Comeau - 650km/11hrs
Day 8 - Baie Comeau to Manic Cinq return - 432km/7hrs
Day 9 - Baie Comeau to Quebec City via 381 - 550km/8.5hrs
Then head over to Gaspe and ride around there for a few days if time allows for it.