After the mysterious appearances on Pokémon GO of the new monster from head to nut, finally arrived the official trailer of the new mythical Pokémon: Meltan.
Meltan was presented in a sympathetic video where Willow and Oak talk intrigued and amazed from the discovery.

The details of the new Pokémon have not yet been revealed, but for now it is known that it is an ancient Pokémon of which there are testimonies in some manuscripts and that looks very much like Ditto.
However, it is quite clear that Meltan will appear in Pokémon GO and Pokémon Let's Go Eevee and Pikachu, the two Pokémon being mentioned by Professor Oak.