I was thinking it would be cool to see the garrisons come back with an over hall. Make it a guild base reward. Have cool things like a raiders hall that when you clear a raid as a guild you get an achievement that unlocks a 10% discount to repair and adds 10% per difficulty. Also make profession building that you purchase and have to unlock with max lvl /rank / crafting. Which will then allow other max lvl/ranked members of guild use these building without the player be on . You can also add buildings like warlock den with a summoning stone mage tower with portals to mage city’s. What ever is added to the guild garrisons will have to be purchased for gold per building and you have to have proper rank and lvl you use Just a thought. A nice way to add other things to do in between raiding and quests