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The past two updates to the Eeveelution line have included opposites, of sorts. Day and night, forest and ice. They already stated that Fairy is strong against Dragon, so hopefully we'll get a Dragon-type Eevee.
I drew all of the extra Eeveelutions a few years ago, unfortunately the only ones I had access to from my phone were Samureon, Toxeon, and Insecteon. I have no idea why these three, since my Fighting and Insect were my least favorites. But I like the poison one.