If you're in North America, you can preorder Tales of Hearts R at GameStop/EB Games or buy the digital limited edition (available from launch until the end of November) and get six Tales costumes for some the characters.
Kor=Caius (Tales of the Tempest)
Kohaku=Marta (Tales of Symphonia: Dawn of the New World)
Gall=Malik (Tales of Graces f)
Ines=Judith (Tales of Vesperia, no idea why the image spells her name as Inez though)
Beryl=Patty (Tales of Vesperia PS3 ver.)
Kunzite=Repede (Tales of Vesperia)
They also claim that the English version of the game will be compatible with PlayStation TV.
The Tales of Zestiria site updated its Mystic Artes page to include images/names of Mystic Artes for the rest of the characters outside of Lailah.
And as previously mentioned, Lailah's is Enbu Rengekiha, Edna's is Venerate Mine, and Dezel's is Brutality Whip.