Some fans have noticed that the sticker located at 1:36 of the new trailer looks like it could be of a new ‘Tapu’ Pokémon similar to Tapu Koko. It doesn’t seem to match any existing Pokémon character and does have a similar ‘shell’ like structure, but this could be a stretch.
https://www.youtube.com/watch?v=TyIkvadJU1Q
Thought it was worth sharing though!
<3 PJ