A slim model Digital only SKU with optional disc drive attachment with plenty of supply would do wonders. That's all they need.
I have a hard time seeing how a Pro would be marketed. We are in the third year of this gen. If it's not coming this year, then when? For it to have any reasonable chance to get supported, it can't get released to far from half gen. So unless this is a 10 year gen...
The PS4 Pro was clearly made for addressing the growing popularity of 4K TVs. What would a PS5 Pro address?
If you're head of PlayStation, at this point, would you rather sell two PS5s, or one PS5 Pro? I think it's clear they rather flood the market with PS5s.
If the pandemic never happened, then yeah I could see some sort of a Pro model released at half gen. But now? Nah