Hell, IF they actually last until the usual expansion time AND offer an expansion I'd say they've lived past the danger!
Nah I'm done with the days of funding them like I used too, i.e. buying 25-35 expansions a year.
Sticking with just 6 accounts again like I did for RoS and if its a good one this year I may commit to buying more for my accounts later on.
The last good expansion in my mind was VoA. The only thing copy/paste was spell/aa upgrades. At least they didn't copy/paste zones.
Although, that was the first expansion they started copy/pasting group missions scripts to be same as raid mission scripts.
These 3-4 zone expansions with 2-3 copy/paste zones is just not a full expansion in my mind.