So, since the book has Ultraman in it and we don’t see it in the trailer, they might replace his role with something else. I mean, based on the trailer, there’s already a good possibility that they replace the (super niche) Leopardon in the book with Iron Giant. Given the situation, maybe Ultraman will be replaced too.
I'm surprised that they still include the RX-78-2 Gundam in the movie coz I assume American viewers are a lot more familiar with Wing Gundam just like
Akira's red bike that's so popular in NA
.