1UP- "Way back in the misty days of 1998, the late, lamented Looking Glass Studios turned out the first Thief and accomplished nothing less than birthing an entirely new genre. Metal Gear and Tenchu each threw their stealthy genes into the mix that same year, but Thief remains probably the purest incarnation of a stealth game where patience, observation, and intelligence count for more than reflexes. After the release of two sequels, the series has been left fallow for nearly a decade while games like Hitman, Splinter Cell and Assassin's Creed took the basic idea and ran with it.
Later this year (or perhaps next) we'll be witness to a revival of the cult favorite, but Eidos Montreal will have a lot to balance if they're to satisfy long-time fans while incorporating the modern conventions we've come to take for granted. Thief IV won't just have to live up to its own legacy, but will need to catch up with the pace set by its own bastard offspring as well."