A Kingdom Hearts II Roxas figure in Bandai's S.H.Figuarts line was revealed and shown off for the first time at Tamashii Nation 2017. This S.H.Figuarts figure features Roxas in his Organization XIII black coat, along with the Kingdom Key Keyblade. It was shown off alongside the Sora S.H.Figuarts figure, which is currently out and available for purchase.
Tamashii Nation 2017 is the final stop of the Tamashii Nations 10th Anniversary World Tour. The Tamashii Nations 10th Anniversary World Tour began in December 2016 in São Paulo, Brazil. The next stop was Hong Kong in February 2017, then New York City in April. It continued in Japan, Mexico, Brazil, China, France, Hong Kong, Italy, Spain, Taiwan, and United States leading up to October. And now, we're at the final event, Tamashii Nation 2017, which is being held in November in Tokyo.
The first Kingdom Hearts S.H.Figuarts figure to be revealed was the Kingdom Hearts II Sora figure. It was shown off for the Tamashii Nations 10th Anniversary World Tour in Osaka, Japan. Then, the Kingdom Hearts II Donald, Goofy, and Organization XIII Mickey S.H.Figuarts figures were later displayed for the first time at Tokyo Toy Show 2017. The Kingdom Hearts II Sora figure was released on November 23, 2017, the Kingdom Hearts II Organization XIII Mickey figure is set for a January 2018 release, the Kingdom Hearts II Donald figure is set for a March 2018 release, and the Kingdom Hearts II Goofy figure is set for an April 2018 release. You can find out how to purchase the Sora figure in the article here, you can learn how to pre-order the Goofy figure in the article here, and you can learn how to pre-order the Donald and Organization XIII Mickey figures in the article here.
UPDATE [Nov. 4, 2017]: A couple new photos of the Roxas S.H.Figuarts figure from Tamashii Nation 2017 was shown off in an after report on the official Tamashii Nation 2017 website. The Kingdom Key Keyblade PROPLICA can be seen in one of the photos as well, which was also being displayed at Tamashii Nation 2017. You can view these photos with the other photos in the gallery above.