The CPU power increase isn't going to change games as much as people think. It's basically going to drive those lower load times, manage more shit AI code because it's the developers faults that we have bad AI, which is why Fear from last generation still has some of the most convincing AI of any game released.
Deep learning AI via cloud services will probably have a bigger impact on games than the CPU.
SSDs are great for load times, but was N64's no load times a game changer vs Playstation?
What PS5 allows is for more actors on scene with unique AI, so open world games can feel less empty. It can also be used for frame rates above 60 and driving graphics of bigger areas.
Until they show us new stuff the cpu and SSD can do for the actual games, it's just more load times, more actors.
They already show the SSD would allow you to go faster in the spidey demo since they will be able to load the world faster .
That is something you can expect from next gen in open world games.