Godzilla isn't the only monster that's being introduced to GigaBash! It was revealed that three other Toho kaiju would be joining him.
The first teaser for the DLC obviously revealed Godzilla, specifically the 1989 Heisei design.
Since then, a couple of new teasers have been released, which tease the other monsters that will be featured.
The second teaser shows two fighter jets flying over the ocean as a large, wingless shadow passes over them. Some fans are speculating that the shadow may belong to Gigan, which makes sense given that Toho just celebrated Gigan's 50th anniversary.
The third teaser shows a stray missile hitting a building. Some fans are speculating that this may be teasing Mechagodzilla, specifically Kiryu.
The fourth teaser has yet to be released, but most fans are suspecting that King Ghidorah will be the fourth monster included in the DLC (it would be strange if he wasn't, considering he's Godzilla's most famous adversary).
The DLC releases on December 7, 2022.
Mothra should be there too.
the monster in the 2nd teaser might be ebirah being judo-flipped across the ocean.