Game Idea - Home Base or "Headquarters"
Would be cool to have a home base or secret "headquarters" where you live (similar to 12 Grimmauld Place in Order of the Phoenix).
Of course, it would only be visible/available to you on the map so you don't attract other players. What would be really helpful is if you could access a fortress just once a day from your headquarters (to help with your daily task in case you haven't had a chance to go out and play). Would also be nice to have an inn & greenhouse available. Instead of the inn giving out energy every 5 minutes, maybe it can do so every hour so that it still encourages you to go out to play.
Maybe it can take some effort, some sort of major quest line, in order to unlock this secret base. I don't mind working on a quest for a month (or two) to unlock this. It would be a really nice QoL upgrade and plus it ties in nicely with the Wizarding World since it's a thing in the Order of the Phoenix with 12 Grimmauld Place.