I liked Dishonored a lot, even if it didn’t turn out to be a literal ninja game. What I seem to have liked most about it, though, is its more tertiary elements. I love the fiction behind the world and its stylish, stylized aesthetic. On the mechanical side, however, I ended up being surprised that it didn’t feel like there was much more to it than playing, well, Thief, save for the empowering Blink ability and comforting knowledge that I could, if need be, literally kill everyone. Thankfully I’m not that bad at stealth.
Dues Ex: Human Revolution -- also from Eidos Montreal, though a different team than that which is making Thief. -- I liked less, for a variety of reasons best saved for another time.
What I’ve seen of Thief, on the other hand, looks like the stealth game I wanted those to be, despite some niggling concerns over yet to be nailed down attempts to make the franchise current and whatever other fan complaints have arisen since the first trailer was shown.