This is silly, they don't know anything we don't know.
1. PS4 Pro and XBox One X were made because of 4K displays becoming common and an opportunity due to advances in technology allowing them to make such a console at a profit.
2. They can't even make enough consoles CURRENTLY to sell as many as consumers demand, why would they make new revisions so soon? It makes no sense.
3. We barely have had ANY current-get exclusives that were built ground-up to take advantage of current gen consoles, why would they make new consoles when we have not even started realizing the potential of current-get consoles?
All three of these points are differences between last time and this time, therefore these consoles will not be coming anytime soon if ever. 8k displays are not common and there is little appreciable difference that will be communicable to consumers between a PS5 and PS5 Pro.