I couldn't find via search anything regarding the base styles conversation on the old forums, so here we go again. I've been thinking that a nest style would be great. Rooftop entrances only (ala Nightwing's loft) with a closet for gear (just a nook you could deck out) and only a small apartment space. I'd really like to see some more weapons mounting options, like a bow rack, a pistols cabinet, a visible swords rack and things like that. I also think that there should be a costume dummy base item that does a style check at the minimum when you log in and matches your costume or even better, a decoratable dummy.
Though, the image of Nightwing sitting atop an egg, is rather entertaining ... I agree, to your great ideas.
