I think the ski industry is following the same path as the tennis industry.
For a while in the 80's and 90's, tennis rackets went through an experimental phase with head size, beam thickness, and weight/balance. But once they found which designs worked best for which types of players, racket designs pretty much stagnated. For the last 15 years or so, nothing has really changed on that front aside from a brief experimentation with strange string patterns. So for the last 15-20 years, the marketing has been all about which wonder material is being used, even though the frames are still almost entirely graphite.
Just using Head as an example, they've had Liquid Metal, Microgel, Graphene, D3O, and now Graphene 360 with Kraibon. But essentially, their rackets haven't changed. The 98" racket with the 18x20 string pattern that weighs 295 g unstrung from 15 years ago plays pretty much the same as the 98" racket with the 18x20 string pattern that weighs 295 g sold in shops today.
I think ski manufacturers are starting to reach the same point. They've gone through the experimental phase with widths and rocker/camber profiles, and they've worked out which designs work best for which types of skis. Now, they've got to find a new way to market their skis, because width and rocker aren't new anymore.