The only thing that comes to mind is more Gaikai integration, but I really don't know what that would be. They already have Playstation Now, and they have Share Play, although does the normal user really use either of those features?
I jumped on the hype train for the share play stuff when they were announcing the PS4, thinking how cool it would be to take control of someone else's gaming session, but I have yet to use it and don't really see myself using it anytime in the near future. The closest I've come is playing a co-op session of Far Cry 4 with @MrBimble when he didn't have the game, but he still had to download a multi gigabyte client to play it, so I don't really consider that futuristic.
I hope whatever it is, it works just as well in reality as it does in their fantasy land.
Also, I can't imagine it would be that big of announcement with E3 right around the corner. Although it does seem that large announcements are coming out earlier and earlier prior to E3 to try to ride the hype train before they are washed away with all of the other news that comes from that conference.