Would be great if you could call multiple actions per choice (instead of just one) within a flow step. Some examples would be calling multiple data value changes, mutliple score changes, multiple campaign requests, etc...
Ex. Call Campaign X and Campaign Y if some condition is true.
Ex. Change Lead Score +1 and Demo Score +2 if some condition is true.
This would apply to pretty much any any flow step where you can put in a choice.