The episode concludes with a sense of closure but hints at future shadows. While the pack survives and Mason is restored, the Dread Doctors' final experiment—the "Nazi Alpha" werewolf—is shown escaping its tank in the laboratory, setting the stage for the Ghost Riders in Season 6. Why It Matters
Once Mason is freed, Scott and Liam engage Sebastien. The final blow is dealt using the Pike (the cane-sword), which was forged from the same steel used to kill the Beast in the 1700s. Teen Wolf - Season 5Eps20
This finale emphasized the season’s core theme: Whether it was the literal return of a 1700s killer, the revival of the pack’s broken bonds, or Mason being pulled back from the brink of erasure, "Apotheosis" solidified Scott’s role as a leader who saves people rather than just killing monsters. The episode concludes with a sense of closure