Nintendo has stated that there would be no more surprises or possibilities for new characters to be introduced, which means that these characters will have to wait for the next part in the series, which has yet to be announced, and there’s no reason to believe that this will change anytime soon.
Sora from Kingdom Hearts will be the final DLC character in Super Smash Bros. Ultimate, a figure that many fans have been pushing Nintendo to include but that we’ve heard from “insiders” and “leakers” will never be added. It’s a terrific finish to a tremendous DLC run for Kingdom Hearts fans, but it means some in-demand characters have been left out in the cold.
There are a few characters many fans have been pleading for, like Crash Bandicoot, Lloyd Irving, Doomslayer, Dante, and Waluigi. That said, going into the reveal of the final DLC character, no character — other than Sora, and maybe Crash Bandicoot — was in demand more than Master Chief, the protagonist of Halo.
Of course, this could be said about a lot of characters. Lots of developers want their characters in Super Smash Bros. That said, with Nintendo and Xbox’s relationship growing more and more, we wouldn’t be surprised if Master Chief is added with the next installment. Unfortunately, this wait could be a long one, as the next game in the series likely won’t come until the next Nintendo console is released, and right now, there’s no word of that happening.
Unfortunately for Xbox fans, Master Chief didn’t join Banjo-Kazooie and Steve as the third Xbox rep, however, this could change in the future as according to Halo community manager John Junyszek, 343 Industries is game. In other words, the only thing blocking Master Chief from being in the game is a desire from Nintendo to add him.