The only stuff we know on her is that she is a Movie Star and trainer that will trade Pokemon with you, similar to the two Radio Celebs in BW2, also that she runs the Boutique and Salon for Character customization.
I'm betting she'll have the Poodle Pokemon on her.
both names sound the same. reverse coloring in hair and clothes.
Cynthia was originally an epithet of the Greek goddess of the moon Artemis Dianthia comes from Diana the roman equivalent
both are woman with high notoriety in their region --- Go show your support for Keiji Inafune's (this is the guy behind megaman) new project Mighty No. 9 http://www.kickstarter.com/projects/mightyno9/mighty-no-9
Wouldn't be surprised if she was Team Flare's boss. I'm thinking either or. --- Viridi, Lloyd Irving, Isaac from Golden Sun, Travis Touchdown, Ghirahim, and Shulk for SSB4. Just one and I will be happy.