Are you talking about as a Hidden Ability or main ability? Eevee Evolutions only get 1 Main Ability and we know that to be Cute Charm now. Which is really funny because it practically destroyed any real competitive use for Sylveon. She'd still be used, but nearly as much since she can't really defend herself. Switching in against an opposite gendered Pokemon could help, but the other Eevee Evolutions have better abilities.
Hidden wise, I dunno I feel as if they'd still shaft her horribly and give her another completely useless attack.