Thanks to Matron and Gunotak from the XSEED forums for finding these! I’ve been hunting for E3 footage from XSEED on this. :)
XSEED Games has Memories of Celceta as one of their games at E3 this week. While the game is still being translated, they still have the game itself, as it has been finished for some time from Falcom. You can see the gameplay footage below.
They have also put together a trailer that you can see below as well.