Yes, the hamstring rubbing is adressed with the new Power. They have intentionally made the “sweep” or “taper” from nose to wings less aggressive and more gradual than on the old Power. I work in a bike shop, so I’m quite familiar with the new marketing spiel from Specialized. In addition to fixing the issues with the taper, they flattened the saddle quite a lot. The old Power tends to push riders forwards which puts a lot on undue pressure on the hands.
In my opinion, the old Power is one of the worst saddles ever produced. The new model looks a lot more promising, but it’s hard to tell without riding it. Sadly, there won’t be any demo saddles available very soon as Specialized decided to only produce the very top end model with carbon rails and charge an insane amount of money for it.