designate

To mark out and make known; to point out; to indicate; to show; to distinguish by marks or description

“to designate the boundaries of a country”

To call by a distinctive title; to name.

To indicate or set apart for a purpose or duty; — with to or for; to designate an officer for or to the command of a post or station.

Designated; appointed; chosen.

Used after a role title to indicate that the person has been selected but has yet to take up the role.