Pan out
Definition 1 of 3
Pro Tip 1/3Unpredictability
Indicates uncertainty about future developments in a situation. 
The project's success will pan out over time; we can't be certain now.
Pro Tip 2/3Neutral Tone
Doesn't imply good or bad outcomes; simply how things occur. 
We need to adjust our strategy as the market pans out.
Pro Tip 3/3Wait and See
Often used to suggest waiting for the outcome of an event. 
Whether or not we go to the festival will pan out once we check the weather.