Well, I don't do hoping or wishing for acquisitions, not my bag. But if they just so happen to acquire FromSoft, yes they'll have had a lot of legacy and preexisting working relationship with them to where workplace culture-wise they'd blend right in with Sony's other teams.
There's a good chance it could happen but again, I personally don't like talking about acquisitions unless/until they are officially announced.
It would be the best move for everyone. Imagine From games being able to match Demon’s Souls fidelity and performance along with their current art direction?