Syphon Filter 5 Rumours

Lately on computerandvideogames.com, there were two posts, one claiming that a Syphon Filter 5 and Socom 4 are in development. After that, that statement was retracted after claims of an "error" on PCB Productions' part.

But it seems to be a trend- sites put these titles up, people spot them, they're reported by gaming news sites and blogs, then they're taken down because they are meant to be confidential. It happened with Dead Space 2 after all, among others.

Sources:

Syphon Filter 5, Socom 4 on the way?
No Syphon Filter 5 after all

Syphon Filter 5 Rumours