The Last Guardian was not present at this year’s E3 due to “technical difficulties”, Shuhei Yoshida has confirmed. The president of Sony’s Worldwide Studios admitted that while the developer is “working hard” on the game, it is still not working as expected.
Some are speculating that the technical issues, coupled with the late stage of the PlayStation 3’s life cycle, might result in the title being switched to Sony’s next-generation console. But Yoshida deflected that claim.
Speaking with Eurogamer.net, he stressed, "It is a PlayStation 3 game."
Regardless of Yoshida's comments, The Last Guardian would make a pretty compelling launch window title for PlayStation 4, wouldn’t it? Day one, and all that.