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There are 3 more full-length trailers to be released before the game and a few more mini-trailers
The first trailer will reveal the starter evolutions, the Corviknight pre-evolution, Wooloo evolution, Impidimp evolution, one new Pokemon, and the two new Eevee evolutions. The dragon evolution will be exclusive to sword and that the steel evolution will be exclusive to shield
The second trailer will show us a bit more of the Galar region, a team Yell admin and will feature clips of the city at the top of the map and show off how sponsorships are gaiend and few challenges that have to be completed before challenging the gym leaders.
The third trailer will come closer to the release day. For the most part, this trailer will just combine everything that has been shown throughout the marketing campaign. The last part of the trailer will focus on Zacian and Zamazenta. Zacian is Steel/Fairy while Zamazenta is Steel/Fighting
I'm fairly certain of the order of the full-length trailers. But I'm not so sure about the order of the mini trailers. So, I'll just list their contents:
Mini-Trailer 1: Gigantamax forms for older Pokemon like the Kanto starters, Lapras, Meowth, and Lucario
Mini-Trailer 2: Winged-unicorn Rapidash reveal type is Psychic/Fairy =. Also reveals Meowth and Persian regional variant it's not version exclusive and the line is based on a mace/flail I don't remember if it's Normal/Steel or just Seel
Mini-Trailer 3: Two more gym leaders will be revealed
100% sure that Generation 4 remakes are next.