During CES 2020, Sony Interactive Entertainment president and CEO Jim Ryan unveiled the PlayStation 5 logo to a muted reception. But while the reveal of a logo isn't the bombshell some fans were hoping for, Ryan has said that there is more exciting news about the system around the corner, and some key pieces of information that have not been revealed yet.

In an interview with Business Insider Japan, which has been translated by Gematsu, Ryan says that the PlayStation 5 will have unique features. He cites the improvements Sony has already announced, including 3D audio, haptic feedback in the controllers, and the addition of a solid state drive. But he also hints at features beyond these.

"There are still more unique elements for PlayStation 5 to come that separate it from previous consoles," Ryan says. "The ‘bigger differences’ have yet to be announced."

This is a vague statement, but it means that we haven't seen the system's full range of possibilities yet, and that the system might be able to do things we're not anticipating--and that Sony is holding back features they consider even bigger than full backwards compatibility.

Elsewhere in the interview, Ryan says that he does not believe that delaying the PlayStation 4's Japanese release was "a good idea" on reflection, and suggests that PlayStation 4 support will not immediately cease when the PS5 releases.

"During the migration from PlayStation 4 to PlayStation 5, there will still be a great deal of PlayStation 4 users. That is very important and we have an obligation to those users."