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 VI
Wrestle Kingdom VI featured the NJPW return of Kazuchika Okada. Okada was a rookie in 2010, when NJPW, through their international connections, sent him to the American Total Nonstop Action Wrestling (TNA) promotion to gain experience and grow as a wrestler. During his one and a half years in TNA, Okada did little of note; he was dressed up like Kato from "The Green Hornet", dubbed "Okato" and made Samoa Joe's sidekick in an angle with D'Angelo Dinero, wrestling only a handful of actual matches. TNA's poor handling of Okada was one of the key factors in NJPW ceasing their relationship with the American promotion, which made Wrestle Kingdom VI the first Tokyo Dome show in five years to not feature any wrestlers from the company. On December 9, 2011, NJPW announced that Okada would return to the promotion at Wrestle Kingdom VI, facing Yoshi-Hashi, who was making his own return from the Mexican Consejo Mundial de Lucha Libre (CMLL) promotion, with whom NJPW also had a working relationship, where, unlike Okada, he had been wrestling a full schedule and improving. Upon his return to NJPW, Okada created himself a new villainous persona named "Rainmaker".