From the mission I played of Dishonored 2, the Clockwork Mansion, it really did feel like masterful level design. If the game has such strong moments throughout, then it will be really quite special.
It seems that is what Arkane Studios is really pushing in this new vidoc. It looks like each mission will have a pretty distinct feel and theme. I really am so excited for this, and that is almost entirely down to the abillities and the level design. I hope it all comes together.