Based on the JSA movie, I will not have high hopes for Diana. After all this is Warworld which is primarily a Superman concept/villains. She couldn't handle Mongul in the JLU, so if we have more of the same people writing or directing this....need I say more.
And I must repeat, she couldn't even handle Aquaman on land. I'm not even talking about water, but land.
Well, she will at least have Green Lantern to transport her like he did at the beginning of the nu52. Why call an uber when you just need a Green Lantern!