Deus Ex: Mankind Divided will bring back one of the original game's major features.
Deus Ex: Human Revolution is considered by many to be a great game and worthy of bearing the franchise name. One of its grating issues though was its boss fights. You only had one way to fight them: be confrontational. The fights largely ignored your character build, which was a huge problem for those who specced theirs to be as stealthy as possible.
Deus Ex: Mankind Divided is not looking to repeat those mistakes, according to game director Jean-François Dugas, who answered a fan question on Twitter.
— Jean-François Dugas (@Jeffachoo) April 11, 2015
Ghosting was a possible and valid way to play the classic original. The term comes from performing actions and never altering NPCs to your presence, like a ghost.
Mankind Divided is still without a release date.