The bond replacing happiness and combined with Sylveon evolving from bond level can't both happen. Eevee already evolves into Espeon or Umbreon based on happieness, so these changes will result in losing the ability to evolve into either pokémon.

The 4 black and white pokémon resembling playing cards is also false. There would be 2 black and white, and 2 red and white to match the colors of the four suits.


I think the whole list of rumors is made up, though some of the ideas are interesting.