Three distinct themes (dive, art deco, and gothic) will be available for all players who purchase the DLC or who have legendary status, and four others (ancient, industrial, cave, and bunker) can be purchased. Lair trim and certain coloration of the themes matches your superhero's color scheme by default, but can be altered.
The trio also demonstrated decorating and teased viewers with a quick mention of a new amenity: the suit holder. Although there is still no exact release date for Home Turf, you can whet your appetite for what's to come by watching the entire stream after the break. And for more information on the lairs, read Massively's interview with Andersen at SOE Live.