I know it sounds crazy, but what about if Sony, instead of using existing architecture that's already out there, worked hard to make a "Super Cell" (no DBZ references please)? Full BC with PS3 and all of it's digital offerings (large amount of retro archive games down the drain now too) plus a high end, cutting edge console. Then we get to the idea that it would be hard to develop for like PS3. Well, that's why it's the Super Cell. It would use custom tailored, just as PS2 and PS3 architecture/chips were, to be as easy to develop for as x86. Why should we say Cell is bound to what it was in 2006?
Maybe start fresh and make PS5 6 7 100% compatible with PS4 without effort while giving developers a user friendly architecture etc etc
This might be a new beggining intead of dragging old problems on and on