We were just walking though Citywalk over the past weekend, and realized there are still 4 large, unused venues available: the old Gordon Beirsch, Howl at the Moon, Samba, and Jillian's (the bowling alley that used to be above Margaritaville). Five, if you want to could the old Wizards/Jon Lovitz Comedy Club, though I've heard that's now mostly used for staff trainings, meetings, and storage.
It's a bit crazy to me that they haven't brought over Cowfish and Bigfire. And the Jillian's space could make for a great indoor mini golf venue, as that area really lacks mini-golf, and it's a great family friendly activity. Citywalk Orlando has mini golf, really shocking we don't when it seems we fairly easily could. It seems it'd be a relatively low cost way to make easy money.