Cannondale also hasn't given up on aluminum—you've got to dance with them what brung you. And my reasonably new distance bike (from Kinesis UK) is made of scandium, so that's still around. I agree that hydroforming has been the big new thing in aluminum, which allows Specialized to form the whole
head tube and adjacent "lugs" as a single piece, for example.
But I've got to say, if you're looking at buying a touring bike, weight probably shouldn't be a high priority, unless you're doing ultralight credit-card touring.