Yes, see this thread for one of the reasons: https://www.flyertalk.com/forum/37203440-post984.html

So broadly the ticketed DONE (from HND) has a six month "stopover" in OSL between Christmas and July. During that time I intend to book something along the lines of:
OSL-DOH-HKG // HKG-CMB // CMB-HKG // HKG-AKL // AKL-NAN // NAN-MEL/SYD-HKG // HKG-SIN // SIN-HKG // HKG-ORD // ORD-ANC // ANC-SEA-IAD // IAD-DOH-OSL

The benefits are: 1) DONE4 from Norway is about 20% less than Japan at the moment, 2) I don't have Europe as my "home" continent, so I get more stopovers in Asia (where I actually live). 3) This will then fill Chinese New Year, Easter, and Summer holidays - along with a few long weekends away, 4) It will use all 16 segments, even if some are US domestics..

The reason I didn't ticket yet is I want to wait until the AA/AS flights are available to book immediately, rather than have to do another change, so I will wait about another month till its about 330 days out. The Alaska flights particularly don't seem to have a great deal of D availability, so that part of the master-plan may need tweaking and I'd rather do it without paying a USD125 change fee if I can avoid, and I am fairly flexible about my routing to get to/from Alaska, and would prefer to get a Transcontinental in there if I can.. but would then need JFK vs IAD (my real destination is PHL, but QR doesn't fly there).

I'll report back how the actual booking goes at the end of August!