It's Star Wars. If Disney put it on the table for Sony, there is no way they would say no.
The Star Wars name alone is enough to sell millions.
They would say no if all their good studios are deep in development of an existing game. You need to put a shit ton of money behind these games, and it isn't as simple as "well just cancel that other game you've spent 50 million dollars on already and spend 100 million making this brand new game now). There are other factors. IP ownership is a huge one. Star Wars may be a terrific one and done, gangbusters seller, but if Sony can't make it again due to not owning the IP, potentially scrapping a game that could be the next uncharted, last of us, gow, horizon etc is worse than saying no to a star wars game.
Spider-Man happened because Insomniac is a well-equipped studio that has a good relationship with Sony that is not obligated to work on Sony titles. So not only is Spider-Man a big get, having insomniac be working on a big scale exclusive game like that is good for Sony as well.
There isn't any other external dev that Sony has a good relationship that is well equipped for a star wars game, so it'd have to be one of sony's big internal studios to handle it, and for that to happen, some scenario that I mentioned in my previous post would need to apply imo, rather than it being a case of "screw your game that's shaping up well which you've spent years developing x studio, you're making star wars now".
This is all assuming that Disney is actually smarter this time after this whole EA Star Wars thing, and isn't giving out full on exclusive Star Wars license to a single publisher for a set amount of years. But moreso licensing on a game by game basis.
If for instance, Sony is given an offer to have the license that will last nearly an entire generation, that's a super different story.