I am desperate for some news on this. Looking at getting the XSX rather than upgrading the PC but 95% of my gaming is RL so the decision is delayed until I hear from psyonix one way or the other.
For a game with an esports scene and crossplay this should be a pretty high priority as 120fps is a tangible competitive advantage over 60fps. You could argue that PCs pushing higher framerates is still an advantage over 120 but I think the law of diminishing returns starts to kick in at about 120.
Calling u/psyonix_devin please give us something!