It would be nice to have a little more guild management controls.
For example, you can currently see how much gold, trophies, etc. a player has contributed, but more in-depth tracking would be nice.
For example, for guilds that have a task order set, it would be nice to see a break down whos is contributing where so when people are contributing to the wrong tasks they can be informed to follow the correct order.
For Invasion, Boss and Guild Wars, it would be nice to see how many attempts players have made so those that are stuggling, but not willing to ask for help/advice those that have advice can offer it via in-game chat or discord (for those using it) discussions.