Wrestle Kingdom 12
Behind the scenes, Jericho became part of a group of people that started pushing for the show to air on American pay-per-view (PPV) for the first time since Wrestle Kingdom 9 in 2015. Some in NJPW felt that airing the show through NJPW World would be enough, hoping that the Jericho signing would increase subscriber numbers. While NJPW was now considered more popular than in 2015, when Wrestle Kingdom 9 did 14,000 buys on American PPV, it was noted that the 2018 show would take place early Thursday morning in the United States as opposed to a weekend like it did in 2015, which was seen as a major negative in terms of getting buys from the country. In late November, it was reported that NJPW had turned down Fite TV's offer for PPV rights outside of Japan and would not be allowing the event to air on American PPV, wanting their streaming service to be the only way to see the event live. On December 3, it was announced that the top matches from the show would air on AXS TV on January 6, 2018, as part of an 11-hour block of NJPW programming with additional matches airing between January 12 and February 9. Five matches, including the top three matches, will air on TV Asahi as part of a special episode of "World Pro Wrestling" on the night of January 4.
Wrestle Kingdom 8
The event featured ten matches, six of which were contested for championships. For the first time in twenty years, the National Wrestling Alliance (NWA) World Heavyweight Championship was defended during the event with NWA representative Rob Conway defending against Satoshi Kojima. The event was headlined by a double main event; Shinsuke Nakamura defending the IWGP Intercontinental Championship against Hiroshi Tanahashi and Kazuchika Okada defending the IWGP Heavyweight Championship against the winner of the 2013 G1 Climax, Tetsuya Naito. A fan vote decided the order in which the two matches took place during the event; the Heavyweight Championship match went first and the Intercontinental Championship match was the final match of the event. The event also featured outside participation from Wrestle-1 representative Keiji Mutoh, who worked under his Great Muta character. The event also featured appearances by Harley Race, Marty Friedman and Stan Hansen.