pan out= (mining engineering) To give a result, especially as compared with expectations; for example, in mining, the gravel may be said to pan out.
Turn out well, succeed, as in If I don't pan out as a musician, I can always go back to school. This expression alludes to washing gold from gravel in a pan. [Mid-1800s]
Definition: come to pass; succeedAntonyms: fail, not happen