[POTENTIAL SPOILERS]
For starters, the game seems to move away from the black and yellow colour aperance and move towards and black and white aperance making the game unfamiliar.
Secondly, the game shows blood and more violet elements compared to BATIM & BATDR (Blood, Skeletons, ect).
Over all, the footage is listed as a prototype so this is not the final product. They might change the game but I still don't like how it looks so far. Keep creating, Joey Drew Studios. You never fail to disapoint!