Well if you look at this image it has that colored circle that you see when you pull an enhanced move in MK9. So some version of that will appear.

Superman knocking Flash into space looks like a super move to me

I have a feeling there will be some sort of finishing moves. That move you mentioned punching Flash into space is probably a finisher? Seems too over the top for a super move, and if you could do that more than once in a match it could get repetitive.

I hope they have enhanced moves and super moves that can also work as finishers. That would be ideal. I also hope the super moves are a lil flashy too...

Supes' orbit punch is a "super" (more akin to xray than finisher), as is Grundy's tombstone smash, and whatever Batman does before / after he strings people up by the ankles. The destructoid preview tells us that much.

Unfortunately no one has actually played the game so its unknown how said supers are earned, or if their "meter" is used for anything else (ex moves, breakers, etc).

We'll probably find out today tho.