the difference is only 50% more like it is with the current PS4 and Xbox One. Who says that the current PS4 eats the Xbox One alive in performance?

6TF Scorpio > 4.2TF PS4Pro > 1.84TF PS4 > 1.4TF XOne S > 1.32TF XOne

i also doubt that devolopers will keep holding the pace to devolope games for the strongest and the weakest console at the same time, they will probably drop OG XOne support or you will see Zelda Hyriual Warriors 3DS like results on the first Xbox One

The biggest problem MS have is the fact 4K/HDR gaming is here already. They can't really run with 4K as the reason to buy the Scorpio now so what CAN they run with? They could talk about 4K blu-ray I suppose but that's hardly a system seller. Games won't have anything different about them either because it's reportedly forward and backwards compatible. The only option I can think of is to call it a next gen console and make exclusives for the Scorpio but that's also a problem because they've just sold the XB1s to people based on the idea people who bought it will be able to play the same games library. Then you have the matter of VR, something that will be exclusive to the Scorpio, disproving what they've said about all games being forward and backwards compatible. I really can't see how MS can justify a higher price than the PS4Pro.

I see a huge mess ahead for MS.

It will be interesting to see how the market responds. This could effectively be Sony trying to set/prime the market for a 400 max price moving forward. Setting the pace if you will.

MS could also decide to make sure the Scorpio holds price parity with the Pro.  Since we don't know the exact hardware yet it's impossible. They could also try to accelerate the schedule.  They could also decide to bump the power and charge a definitive premium price.  Either way I see them trickling out some info to try and steal some thunder.  

That's exactly what Sony are doing. They've matched the launch price of the original PS4 for that very reason and it puts MS in a difficult position. They can either downgrade the specs in order to meet the $400 mark or take a big loss on every console sold. Either the fans are unhappy or the company lose money. That's not a good position to be in. They could of course launch it as a PC ...

I don't at all see Sony launching PS5/PS4Pro2/whatever just a year after Scorpio (i.e. 2018),
as LurkerJ stated they benefit by stretching out gen with ~2:1 lead in first half, likely ~4:1 lead in second.
I think 2019 is a possible launch date, although 2020 is just as likely... I don't see waiting beyond that.
It seems like they would avoid launching earlier if a significant boost is available shortly after.
In that frame, what would they look at? Zen+? Navi? 7nm?
Especially if no significant fab/design advance is available shortly after,
I would guess MS might swallow a shorter gen to match Sony's launch date, but with stronger/pricier spec.

People don't want the best in class console. If that was the goal, everybody would choose the Xbox one s over the ps4 and ps4 slim.
But people don't really know what they want, and taking performance is just abstract for people.
What matters again and again is games and brand. Playstation is such an old loveable brand compared to xbox. And people just want to play their favorite games.

The mass market does'nt care about the scorpio or the pro specs. They care about what they can do with the devices. And right now, HDR seems to be the favorite buzzword, above 4K and speed.

The XB1s is 'best in class'? Just because it has a 4K blu-ray player? Are you forgetting the PS4s is more powerful than the XB1s and games run and look better on it or aren't games the main reason people buy consoles now?

Best in class console.... IS the PS4.

It runs games at better resolutions & frame pr sec than the xbox versions (almost always) in multiplat games.

So yes the consumers do care about that stuff,... its part of why the PS4 sells better.

The real limiter here is that the Scorpio just does not seem to be worth its projected price tag.

If the core features of the games themselves were going to be better, sure, but they're not. They're still being made with the vanilla PS4/XBO in mind, which makes the 'upgrade' mostly cosmetic. The value-to-improvement ratio is not going to be worth it for most people. They'll look at the two and say, "if it's the same game, why is that box so much more expensive?"

Now, I understand that there will be rich kids and technology enthusiasts who don't mind spending more money for modest gains but that value ratio is important to most consumers. If we cut those consumers out of the equation then I don't see the Scorpio making that big of a difference in the "Xbox vs. Playstation" battle.

It's possible that the projected price tag won't be accurate and Microsoft will put it on the market for less than expected. The problem there, however, is that Scorpio is so far away that people will go with that assumed price until a real price tag is announced, which means that they likely won't wait to make a purchase if they're in the market for a new console.

What Microsoft is doing is interesting but I have a hard time imagining it will make much of an impact. Regardless, I want to see how the market responds.

I'm amused that in the first part of your response you laugh at Xbox fans for their spec boasting only for you to then proceed to boast about the PS5's specs in the next paragraph.