Rumors have finally given way and Eidos has confirmed Thief 4 development. There has not been any Thief games since Thief 3 was released in 2004. This may be too early in development to expect anything more than some scant E3 coverage.
Oddly enough, they are using the 4 in place of the E for early advertising, which is a complete adulteration of elite speak. Hopefully, this decision won’t give other publishers any bright ideas. Before you know it, we’ll be playing H4LO and Metal Gear 5olid.
[Official Website] [Official Forum]
[Source]