As Boon has stated, all MK characters will retain their classic special moves and will most likely have new ones as well. So in this thread, we attempt to modify some of the classic moves to make them new.
For example, Scorpion's spear attack is classic but what if in MKD, Midway creates a crouching version of the spear move. Scorpion would shoot out his spear while crouching, it would hit the opponent's leg and then Scorp would drag them. They would receive damage while being dragged cuz their back is to the ground and the friction just burns.
Rayden for example could perform his teleport ANYWHERE, including when he is in midair.
Sindel's scream could be amplified, as in it has a much farther reach but can only "hit" opponents when they are in an area in front of her.
Go ahead, you try. You never know when a member of the MK team is reading this. =D