I don't think CPU is the issue but rather the GPU since I believe they said it had 6TF of GPU performance but correct me if I am wrong. Either ways, it depends on whether or not the devkits and etc are already out to the devs. If they are, it would be hard for Sony to change their hardware without losing a lot of money but if they havn't then they can still certainly try something out.
At its worst, they should price the ps4 Neo lower than the Scorpio and try to sell more that way. According to Eurogamer, if Sony were to change, they would have to change things drastically to have something similar provided all the specs of the ps4 Neo and Scorpio are legit.
http://www.eurogamer.net/articles/digitalfoundry-2016-xbox-one-project-scorpio-spec-analysis
PC Specs: CPU: 7800X3D || GPU: Strix 4090 || RAM: 32GB DDR5 6000 || Main SSD: WD 2TB SN850
