After seeing Ermac's flying variation and how some of his moves looked like they would work much better against someone at his height, I though that it would be totally awesome to have more characters with a flying variation to perform aerial fights.

The first one that comes to my mind of course is Sindel who was the closer thing to a flyer that we got in MK9, plus Sindel vs. Jerrod (and apparently Shao Kahn too, which means her 2 husbands) sounds awesome.

Now I think D'Vorah should've been given a flying variation too given how one of her variations is basically adding poison to her attacks, a flying variation would've added more spice. And there is room for some new characters to have some flying too.