John Wick: Chapter 4 features Keanu Reeves, Ian McShane, and much of the original cast, although The Elder, the High Table's most important member, has been replaced.
After a long and hard quest to clear his name, John Wick met The Elder in John Wick: Chapter 3 - Parabellum, but their meeting went poorly.
Wick's attempt to leave the High Table failed when The Elder gave him one option: assassinate Winston, The Continental's manager.
After being compelled to give his wedding ring and finger, Wick departed the desert to carry out his commandment, but the High Table and
The Elder were disappointed when Wick changed his mind. In John Wick 4, Wick returns to The Elder to collect his wedding ring, but the leader has been replaced.
Wick must seek satisfaction from the High Table's new envoy, the Marquis de Gramont, since the Elder can only provide obfuscations.