Charizard seems to be the champions main Pokémon. This is odd, because in all generations, the champions Pokémon was from the region, except 2. Generation 2, because lance got upgraded and needed to keep his signature Pokémon, and generation 6. Generation 6 saw dianthus with mega gardevoir. This is because Pokémon wanted to show off mega evolution. And now think about the current champion, who has charizard. Following this pattern from before, charizard must be getting a new form or gimmick, such as armored evolution.