Wing panel at sdcc where all the announcements happened. While they did not straight up saying they are animating frozen teardrop they are definitely hinting it. The manga that links EW to FT is just the beginning. They obviously have intention to cast the same voice actors to reprise their roles. Also you can hear Brad doing his Gundam Rap.

https://youtu.be/ctp-AZ329rk?si=ls9RdM4PDoUgF3u7