Stealthflier:

Your guess is spot on!!
I'm starting on 4th July and getting a bit panicy as not all flights have vacant seats and some require overnights in third world countries which I'm not happy about at all. I'm still sticking to my original plan SYD-AKL-LAX-BOS-SJO-MIA-PTY-CAS-CAI-HEL-HKG-
SIN-SYD but I'm confirmed only upto PTY-MIA. Still not too sure whether I should change PTY to BUE instead to get 6th continent on BA as it has been said that BA considers Central America part of North America or will BA get in line with others and change that.