Wrestle Kingdom 9
Wrestle Kingdom 9 drew 36,000 fans to the Tokyo Dome, reportedly (accordingly to "Wrestleview.com" and the "Wrestling Observer Newsletter") the best attendance for a NJPW January 4 Tokyo Dome Show in 13 years. The event reportedly had 12,000 to 15,000 purchases in North America.
Wrestle Kingdom 12
Wrestle Kingdom 12 was officially announced on August 13, 2017, during the finals of the 2017 G1 Climax. Jurina Matsui of SKE48 was appointed the special ambassador of the event. The event would air live through NJPW's internet streaming site, NJPW World, with English commentary provided by Kevin Kelly and Don Callis.
Takaaki Kidani announced that NJPW looked to get 30,000 fans in attendance for the show. Tickets for the event went on sale on October 25, 2017. NJPW was said to have been shocked at the large number of tickets sold outside of Japan with the situation being described as "like nothing before for any Japanese pro wrestling show in history". On November 27, NJPW announced that ticket sales were up 80% from the previous year with 20,000 tickets having already been sold. On December 25, the promotion announced that 30,000 tickets had been sold. Three days later, NJPW announced it would be making more seats available on the day on the show.