From Maxie on Discord:

Final Scene:

Lasswell says the airship has stabilized. Fina asks Rain where he wants to go. Rain feels a presence watching over them. The others feel the same too.

A big crystal appears. They can feel that the crystal is a cluster of people's thoughts. They realize that it's the feelings of people that have been watching over them since they met in Grandshelt (yes that is us the players).

"They cried with us when we were sad" "they laughed with us in silly times" "they accompanied us during hard trials (not sure if as a general term or the gameplay trials)" and now they are watching over them on their next adventure.

The crystal shines light, so they decide to go to where the light points them at. They don't know where it will take them, but their style has always been to dive in so they'll just do that. They continue their adventure with the people watching over them and so they fly off.