I think we all need to temper our expectations regarding Scorpio. It's a more premium device than Sony's PS4Pro, with probably one of the largest die sizes of any console on the market, is the highest clocked console to ever exist and thus boasts a rather sophisticated and thus expensive cooling system (for a console. On top of this, by MS's own admission it has PCB components cherry picked for each individual unit to balance the power profile, so will be more expensive to build and assemble than the XB1 S.
MS themselves expect Scorpio to sell less than the XB1S, which itself is currently still being outsold 2:1 in MS's strongest sales region. I'm not even sure MS will even be able to make enough Scorpios to match PS4 sales, even if the demand for such a premium device is there.
Scorpio is clearly not a mass market device and so will be very unlikely to impact Sony's plans for their next-gen console (possibly even MS's for that matter).