The fourth DLC character for Super Smash Bros. Ultimate was announced during Nintendo's E3 2019 Direct and it turns out that Microsoft is letting one of its characters be part of the series, as Banjo-Kazooie are coming to Super Smash Bros. Ultimate.
The E3 Nintendo Direct opened with the reveal that four of the heroes from the Dragon Quest series are coming to the game as DLC characters, who are collectively known as The Hero. The fans likely did not expect a second DLC announcement for Super Smash Bros. Ultimate in the Direct, but the penultimate reveal trailer was f0r Banjo-Kazooie. The trailer was similar to that of the one for King K. Rool, with Donkey Kong and Diddy Kong lounging around their house before seeing a figure outside. In the new trailer, it was the Duck Hunt Dog pretending to be Banjo-Kazooie, before the real characters fly in for the reveal.
Banjo-Kazooie's move set comes straight from the Banjo-Kazooie games, with Banjo being carried by Kazooie as part of the running animation and Banjo using Kazooie to fire pellets like a gun. Banjo-Kazooie will also be adding Spiral Mountain from the original Banjo-Kazooie as a new stage, which appears to rotate on its own axis. Grunty the Witch is shown in the trailer, suggesting that she might be a stage hazard of some sort. Banjo-Kazooie's Final Smash involves collecting the Jinjos and using them to attack the enemy in the same way that they are used in the final battle in Banjo-Kazooie.
Banjo-Kazooie has been one of the most requested characters in Super Smash Bros. Ultimate for a while now and their appearance in the game is especially relevant, as the characters are owned by Rare, which is a developer that is now owned by Microsoft. Nintendo and Microsoft have demonstrated a close relationship recently, with the two companies able to strike a deal that led to Cuphead coming to the Nintendo Switch. The appearance of Banjo-Kazooie in Super Smash Bros. Ultimate may be a result of the two companies working even closer than anyone realized. It's also possible that Microsoft only agreed to the deal because they are planning on releasing a new Banjo-Kazooie game in the future.
Banjo-Kazooie are coming to Super Smash Bros. Ultimate as a paid DLC character in autumn 2019.