Announced on the official Japanese Tales twitter account, on August 4 a free demo will be added to the PlayStation Store on PlayStation 4 (note that it's only for PS4 and not PS3, despite the game releasing on both in Japan). It will be the same one from recent events with a Scenario Mode taking place at Maclir Beach, and Battle Mode in Baird Marshlands (names are guesses, not official spellings).
The video showcasing Catalog #2 of Tales of Berseria's costumes to be released next month has been uploaded:
Geoboard Set (Rappig, Broom, Repede Board)
Very short hair set
Short bob hair set
Fairy tale costumes [email protected] Cinderella Girls costumes (change battle BGM, not heard in video)
School costumes (include 3 color variations and changes battle BGM, is heard in video)