Now, take this with a grain of salt, but a potential poster has leaked, showing crimson stormtroopers and a new TIE

https://www.comicbookmovie.com/sci-fi/star_wars/star-wars-episode-ix-promo-poster-leaks-online-finally-revealing-the-knights-of-ren-and-more-a167422

Seems the poster has been removed (from comicbookmovie.com) at the request of Disney.