Syphon Filter 4 is under development if the people over at Gametrailers and Giant Bomb forums are to be trusted. According to them the USA PlayStation website had listed Syphon Filter 4 as under development at SCE’s London studio and is being made using a completely new engine. The new logo is as attached above and it looks fake in my opinion. According those pages (now taken down), Syphon Filter 4 is slated to release in Q4 2012.
I believe this will be one of the announcements at Sony’s Press Conference this E3. GamingBolt.com will be there in person to cover all things, including this game, if it ever gets announced.
Stay tuned to us for more news and updates.