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Crystal's FurAffinity Journal suggests that her website is going to throw a "Month of The Eevee", which appeared to commemorate the release of Pikachu and Eevee Friends, which featured Eevee.
Three Eevee are distributed, but to have different stats. One of them has a password that is found within a hacked SNES Yoshi's Island game called "Yoshi's Ultimate Island". One of them isn't hacked and has an OT of Kris. One of them was based on an Eevee from Pikachu and Eevee Friends and was not even shiny.
If these Eevees are transferred to Pokémon X or Y Versions, they are possible to make them evolve into a Sylveon in no time.
The Eevee are also meant to celebrate Summer as an awareness.
UPDATE ON 7/3/13: The two Eevee were distributed via the link at Crystal's profile on the one of the following websites: DeviantART.com and FurAffinity.net. The Extremespeed Eevee was distributed confirmly within a game hack.