The phrase "ultimate destiny" refers to the final or most important purpose or outcome of someone or something. It represents the final destination or goal that a person or thing is ultimately meant to reach or achieve. Full definition
Heaven and hell are in the picture as the two possible ultimate destinies for humankind. (religion-online.org)
Although the Dutchman has so far only played in defence for the first - team, regular watchers of the club's academy teams suggest the former - Ajax youth product's ultimate destiny lies further forward, as an unassailable midfield general. (squawka.com)