outgoer
/ˈaʊtˌɡoʊər/Definitions
1. noun
A person who is leaving or going out, especially someone who is leaving a position or organization.
“The outgoing CEO will be remembered as a key outgoer in the company’s history.”
2. noun
A person or thing that is going out, such as a product being discontinued or a service being phased out.
“The outgoer of the old phone model has caused a surge in demand for the new model.”