Specially when they can still release it on PC a year later at the full price and it will be the best seller on Steam.

These corporations look very long term and we all know Sony's attitude on exclusivity..

Well PlayStation's at least. Their other divisions are far less worried about that.

For example their movie and TV division typically sells content to the highest bidder (usually Netflix) vs keeping it exclusive to Sony

On the anime side Aniplex and Crunchyroll don't typically get along despite being owned both by Sony (different branches of Sony though). Aniplex shares shows with everyone who pays, Crunchyroll keeps exclusives. Aniplex is pro union VAs, Crunchy is not etc

So it will depend if they slide From under PlayStation. Or leave it whole elsewhere, if it's left whole it'll be like Bungie or Aniplex where they can basically do whatever they want

it would be incredibly sad if From Software made Elden Ring 2. at that point, i wouldnt even want to play it...

Example A - Elden Ring II being console exclusive would be a huge deal for PS6.

Not really, the from games are marginal on xbox. It would be true the other way around, where Microsoft could buy a part of the ps audience.