The first thing we saw while looking at Hanoi from a Black Ops 3 perspective is how we could move from one section to the other using Windows like in the Skyjacked hallway.
There are also a lot of interconnected areas for players to move from one lane to the other, which will open up the maps some. There is already support for some multi0level engagements, which could line up will with the jumping and wallrunning.
The courtyard with gallows also opens up interesting sliding options to quickly surprise other enemies.