699 US DOLLARS or Sony bankruptcy from the massive loss per Console sold at 399 if in 2019.Depends what you want:
3.0GHz Ryzen 2 8c/8t or 8c/16t
10-12TF (plus custom stuff)
16-24GB GDDR6
500-700GB bandwidth
Would be a very nice upgrade and will do amazing things in a closed box.
2020/1 that sounds more reasonable for 399 with a small loss for Sony, especially if they scoop up GDDR6 from China.