Definitely serious. I was planning with a friend of mine from out of state to ride to Banff, this was going to be a test ride to see if I can endure a longer trip to AK.
I had this loop planned: SF > Eureka/Lost Coast > Portland > Seattle > Vancouver (maybe cross to that island there) > Banff/Jasper > south to Yellowstone > Salt Lake City > back to SF
It was scheduled for this year. We didn't fully agree on the extent of the ride. I can do the entire loop on my Tiger, my friend would have to take one of my other rides, but none are as comfortable as the Tiger. So we agreed on trailering to Oregon, ride to Banff and then return back to Oregon.
Reason I ask how you get there is that many of these trips might involve lots of boring slabbing and I don't know if going to AK is worth riding all the way, or trailer to AK and be fresh to ride there. I often rather trailer and be fresh, especially if the place to ride is challenging.
The ultimate trip I want to do is Patagonia. I am from Argentina and my parents took me on vacation all over Patagonia and Chile when I was a kid. I have the best memories on those trips (on a car, of course). I've been planning a very large loop with a friend of mine to go from Buenos Aires through the east coast to Tierra del Fuego, then back up through the Andes, cross to Chile, then cut across back to Buenos Aires. Unfortunately neither of us had a month vacation available and now my friend has a kid, so this out for now...
Thanks for the imagery, this is getting me the motivation I need to get me thinking about a long trip as soon as this is over!