There has much doubt cast on the future of The Undertaker with many speculating he's done at least with wrestling, although if rumors are to be believed he is still in contention for at least one more match against John Cena at WrestleMania 34.
Today, PWInsider is reporting that The Deadman is booked for the upcoming Greatest Royal Rumble event in Saudi Arabia on April 27, 2018. WWE wants to take over a strong roster to help sell as many tickets as they can for King Abdullah Sports City in Jeddah, which holds over 60,000. Taker will no doubt be a major driving force ticket sales.
It is unknown if Taker will be wrestling on the event but he will certainly be apart of the historic event in some fashion.