This page contains information regarding Star Trek: Discovery, and thus may contain spoilers.
After Lieutenant Ash Tyler was revealed as the Klingon Voq, she was assigned his case. Pollard was present and monitoring the situation when L'Rell performed a procedure to remove Voq's identity from Tyler's body. (DIS: "Vaulting Ambition", "The War Without, The War Within")
Pollard was among the crewmembers who volunteered to stay on board the Discovery and accompany Burnham when she took the ship forward to the 32nd century to elude Control, with no chance to return. She was on duty in sickbay helping the injured during the Battle near Xahea. After Discovery disappeared from its original timeframe, Pollard was presumed dead by Starfleet, based on the testimonies of the USS Enterprise senior officers. (DIS: "Such Sweet Sorrow, Part 2")