I see PS teasing PS5 either before Scorpio releases or they wait until early 2018 (Jan or Feb) so they don't hinder any 2017 x-mas sales. E3 2018 reveal, then Nov 2018 launch. $499 price point so Pro buyers don't get mad that its another quick $399 upgrade, its clearly a next gen step up. At that price it should also match if not out spec Scorpio by that time.
If it were to play out like this, MS and Scorpio will be in as much trouble as they were with the XOne launch. It would most likely lead to MS coming out with a Scorpio upgrade the year after PS5 in 2019, or slowly fade into third place in the console wars for quite some time.
This assuming NX is a huge system seller and takes second if not first place in console sales race in the coming years, which would be tough but possible with Nintendo.
PS1 - ! - We must build a console that can alert our enemies.
PS2 - @- We must build a console that offers online living room gaming.
PS3 - #- We must build a console that’s powerful, social, costs and does everything.
PS4 - $- We must build a console that’s affordable, charges for services, and pumps out exclusives.
PRO -%-We must build a console that's VR ready, checkerboard upscales, and sells but a fraction of the money printer.
PS5 - ^ -We must build a console that’s a generational cross product, with RT lighting, and price hiking.
PRO -&- We must build a console that Super Res upscales and continues the cost increases.
