The NPC most likely are refering to the “Guild Workshop” you need to develope in your guildupgrades in order to use them. But I really hope and looking forward to have a guild hall again. Imo this makes a Guild much more a community, when you really have your own place to meet and socialize. It is cool to have your own town (all thou this is not very exciting yet) but for the whole guild there should be a place they can call their own.