Let's do some well reasoned theorizing on the potential new eevee forms, so far we have
>Normal-Eevee
>Fire-Flareon
>Water-Vaporeon
>Electric-Jolteon
>Psychic-Espeon
>Dark-Umbreon
>Grass-Leafeon
>Ice-Glaceon
>Fairy-Sylveon
This cover most all of the elemental typings, which has been the trend with past eeveelutions, the only remaining types are
>Ground-kind of boring, so unlikely
>Rock-similar issues to ground
>Steel-It would be interesting, and fits the sword/shield motif, as well as acting as a counter to the newest fairy type
>Bug-would be interesting, but it isn't a popular enough type for most people
>Poison-sort of fits the elemental theme, and would act as a good fairy counter for sylveon and other new fairy types
>Ghost-would be cool as hell, but probably won't happen, but they might go for an skull motif/umbreon vibe with it
>Flying-I personally would love this, but I doubt it will happen
>Fighting-too close to normal in style, so not too likely
>Dragon-This would be a fan favourite and would fit in with the medieval theme, much like the steel type
This is strictly an opinion and curiousity piece, post wild theories and fake leaks below