If you've watched the leaked trailer for Assassin's Creed IV: Black Flag (I'm not going to link to it because it was under embargo), you may have noticed that the game holds a release date at the end of October 29th. The trailer also shows that it will be releasing on PS3, PS4 as well as the Wii U and Xbox 360.
This suggests that we could see the PlayStation 4 released in October, earlier than a November release date that many have been expecting. It's even possible that the game could very well be a launch title for the PS4, although nothing has been confirmed yet. On the other hand, it could just be that Ubisoft mentioned the platform in the trailer, but plan to release it at a later date.
Anything's possible, but could we really see the PS4 released in October?