Jak might as well have been the first character revealed for PlayStation All-stars Battle Royale. Along with Ratchet, Kratos and Nathan Drake, Jak is a symbol of PlayStation at its very best and if they didn't make it in there, something would have been very, very wrong. It seems that some tweeting from a closed set on which they're filming a Battle Royale commercial might have revealed the existence of Jak in the game but, let's face it, nobody is going to be especially surprised.
Several different websites have been in touch with their anonymous sources and have been told that a character with blonde hair and goggles has been spotted on set. Usually this wouldn't be enough to make us entirely certain, but the story has been corroborated by several different anonymous sources and, frankly, it's not like they're revealing the existence of Master Chief in the game or something equally as shocking, Jak is a PlayStation staple.
No word on when we'll actually see him in action, but consider him part of the Battle Royale team.