I wondered why we didn't had a major decisive battle event for a while. That explain why... That's a bit sad. Being time limited was a great part of the fun. I hope they will add the final boss of story part4 as limited major battle to start a new cycle and not totally drop the concept.
A huge page of the game history is turning.

Also, something is catching my eyes:

updates such as expansion of world exploration according to the progress of the main story
I wonder if that means current main story will add a new nation somehow. Maybe Kodaibana as home for the new non Knights girls?. It would be cool to make somehting with that part of the world).