A new Tales of Berseria article shows new characters...sort of.
The two people we've seen in trailers officially have names and descriptions now.
The male knight is named Oscar Dragonia, voiced by Tomoaki Maeno. A Praetor (a rank of Exorcist at Abbey) of noble blood with a strong sense of duty to bring down deamons.
Then there's Theresa/Teresa Linares, voiced by Yui Horie. She's Oscar's half sister and also a Praetor of Abbey.
On a side note, she refers to Laphicet as Number 2.
You can also catch a glimpse of Velvet's Mystic Arte, which seems to be named "Lethal Pain." It mentions that to activate one, you hold L2 during a combo.
Machi Asobi is currently ongoing and while the new trailer for Tales of Zestiria the X shown there hasn't hit the internet yet, you can preview a bit of Lailah's new voice in the ropeway announcements there.
It would seem Japan is finally getting the PlayStation 4 version of Tales of Zestiria that only international markets had gotten previously. It will release on July 7 and the physical release will cost 3,800 yen while the digital PS4 and PS3 versions will be 3,400 yen. This release will not include ufotable's anime special "Tales of Zestiria ~Dawn of the Shepherd~" like the original did though.
There isn't much gameplay footage out there of Tales of Berseria, but Game-eXperience uploaded a video of some taken with a camera. Hopefully this should hold people over until we get a system trailer or some other direct feed gameplay.
Edit: Video is private now. Leaving post in case they make it public again.
Edit2: Edited in a reupload