No. Dishonored is a very poor man's DX. I was so excited about the game too because Harvey Smith (designer on original DX1 and 2) was a lead on the game and he seemed to learn a lot from why people hated DX2. So I was expecting Dishonored to really just be an amazing spiritual successor to DX with Thief like elements.
It is not. The story is hot crap, the level design in pretty uninterested, the game hates you for going stealth, and your choices generally don't really matter. DX: Human Revolution is a much better DX than Dishonored.