I think this is oddly specific and I'll admit I haven't looked through the myriad of previous replies, but I'd love to be able to invite characters like the Hellhound, Drider Queen, or even the Snake Woman to the Wayfort when it is complete. Maybe even Sariel or the thief Moth or Shar. Like make it a haven that can house several NPCs of the sort. Maybe they'd add some kind of benefit like Hellhound offering a bodyguard of sorts and Drider Queen web traps for invaders. I dunno. I guess I'm attached to those kinds of characters and wanna see more for them.