>>57066750The press release
>>57066752 has better pictures of a few cards but the only additional information beyond what's in the video is a screenshot with a Serperior binder cover and the Expert Solo Battle screenshot.
The video description says
>The Mythical Island expansion features over 80 cards, including five new exciting Pokémon ex cards, five new Trainer cards, and gorgeous immersive cards ready to bring you into the wondrous world of Pokémon.So at least 81 cards (including alt arts and A1 reprints?), 5 of them are new trainer cards (not necessarily supporters), 5 of them are new ex cards, and at least 2 of them are available as immersives.
