The Undertaker hasn't had his last ride in WWE just yet.
According to a note in the Wrestling Observer Newsletter, The Undertaker signed a 15-year deal with WWE in 2019. This means the Undertaker would have at least a 44-year tenure as an employee of WWE, starting back at the Survivor Series in 1990.
As for what is left of the Undertaker in the squared circle, the current WWE Network documentary, Undertaker: The Last Ride, is currently taking a deep dive into the most recent years inside the ring for the Undertaker, with the revelation that his career was supposed to end with his match against Roman Reigns at WrestleMania in 2017.
Now, it is purely about the challenge for The Undertaker and whether or not he can live up to his own expectations inside a WWE ring. His most recent cinematic match against AJ Styles at WrestleMania 36 was critically acclaimed and the only question now is, when will we see The Undertaker next?