while I tend to disagree on the cups and cones wearing out thing, given my experience that with regular regreasing, they will last ages in excellent condition---I must admit that Im intrigued by the pluses you bring up.
did a quick look , and not avail in disc with qr , only thru axles--so wouldnt be able to use them on my Troll in other words.
but neat design advantages. Ive just never owned cartridge bearing hubs yet, so really have no experience with them.
I checked DT Swiss' site, 350 Classic avail in disc/QR. I've never had many problems with cup/cone hubs either but maybe DT Swiss would be good for epic tours. My newer bike has proprietary HED wheels with mystery sealed-bearing hubs...only info I could get was they're supposedly user-serviceable & accept std bearings.