Current generation PS3 games will be streamed over the internet using technology developed by Gaikai, which Sony acquired last year in a $380 million purchase, according to the Journal. The report backs up similar rumors from 2012, which said that Sony was planning on achieving backward compatibility for the PS4 through a cloud-based streaming service.
The report says Sony is "investing heavily" in preparing Gaikai's technology for the PlayStation 4.
Sony also reportedly plans to unveil a new, higher-fidelity version of the camera that powers its PlayStation Move controller and a new DualShock controller with touch-sensing pads, photos of which leaked earlier this week. Sony's next console is expected to ship later this year, as will a new Xbox console.
Sony Computer Entertainment has announced that we'll "see the future" of the PlayStation brand on Feb. 20 at an event that will be livestreamed from New York City.