I'm about to quit because I don't want to ever send another explorer. Not even during an event.
I'm glad there are subtle / minor improvements but I think a few of the top QoL improvements for veteran players would be very well received, such as the ability to create groups (of explorers, generals, buildings) and take the same action on/with all of them.
I would love two make a Woodcutter general group, for all the gens that go to Woodcutter when I run it. And a "fish steak" group for all the buildings I want to buff with a fish steak. And explorer groups by the time it takes them to prolonged treasure search during events. And geo groups for granite, iron and marble since those are always running out...
Just saying, the less time I spend doing "maintenance" type tasks the more time I spend playing the game, so the more fun I have, and the longer I will play.