Here is the full Tekken 8 Heihachi Mishima DLC trailer: As for the updated roadmap, it shows that Heihachi Mishima will join Tekken 8 as DLC in Autumn 2024.
Bandai Namco used Evo 2024 to reveal the next Tekken 8 DLC character, and it is Heihachi Mishima.
Lidia is the next DLC character, and she’ll be followed by Heihachi.
From there, we see other current and DLC characters from the game and hints at the roles they play, like Reina and Lidia.