If the PS4 Pro can be sold as a 4.2 TF machine for $400 by the time the Xone launches with 6tf wouldn't the price be pretty much the same anyway.
As for PC ports it largely depends on the fact if every game that runs on the Scorpio also needs to be able to run on the One. We are not there yet but stay with me. If every game which uses the extra power of the xone Scorpio, also needs to run on xone. We get a situation whete the xone is bottleneck for some pc ports. If not every game has to ve able to run on xone MS can fade gens and release constant updates which support diminishes over the years and while staying in the same gen. It they do the latter MS could build a specific library for Xone and PC with many games that can't run on a console and indeed traditional gens are over.
Please excuse my (probally) poor grammar
