The PlayStation 5 console will be offered up to some fortunate Japanese vloggers as part of the YouTube Gaming Week that is coming up soon, with the PS5 hands-on giving the potential for a full UI reveal among other things. SIE boss Jim Ryan has stated that there is some "really cool stuff" to be shown off in regard to the user experience.
https://www.notebookcheck.net/Upcoming-PlayStation-5-hands-on-event-in-Japan-could-reveal-more-about-the-PS5-UI-and-other-really-cool-stuff.495084.0.html