“We have announced the pricing for our first party line up of PS4 launch and launch window games,” a Sony representative told ShackNews.
“All four titles, Killzone: Shadow Fall, Driveclub, Knack, and InFamous Second Son are all $59.99.”
So there you have it, there's no official word on third party games, but there's no way that those games will cost more than the first party titles.