We received an invitation to NIS America's press event today mentioning announcements for new unnamed titles as well as special industry guest appearances. NIS America also slipped in an extra image of 2 characters silhouetted behind curtains who resemble Ar Tonelico 3's Saki and Finnel.
There also seem to be 2 characters next to them pixelated, though we can't make heads or tails where it's from. We've included the image inside, see for yourself. Let us know what you think. We'll keep up updated on any new announcements.
The included image on the invite confirmation page:
An official wallpaper from the game (note this was not included, simply here as a reference):