It will all depend on how many people will buy the Scorpio and what kind of support it will get. It could be a 20 Terraflops beast with a GPU that's powered by fairy dust, but the question is if that will translate to the actual games. The ps4 Pro is also 4 times more powerful than the ps4, I own one and I love it, but to be fair, it's not that the games look 4 times better. You just get slightly better graphics and framerate because no developer is seriously tapping in on the extra horsepower and alienate the normal ps4 userbase.
Of course, I would love to see MS push the Scorpio with crazy exclusives, build from the ground up to take advantage of the hardware. But kinda doubt that will happen.