Hmm. I guess somewhere along the way, I stopped worrying about capsules. I think, because every week, I dress for anything, from hot yoga, to being onstage, to grubbing around in the dirt pulling up weeds or scrubbing out the garage. So if there's a wardrobe hole, I'm aware of it pretty quickly.
I try and keep my clothes simple, things that easily overlap, and can be restyled from smart casual to very dressy. (By very dressy, I mean, fit to sing onstage, or to attend something fancy such as the ballet or opera). As an example, yesterday I wore skinny jeans, my black BR Tippi sweater, and some chunky heel pumps to an audition, with a moto-style jacket on top, for an audition. I went to a jazz open mic, and switched out the jeans for a vintage St John skirt, black hosiery with a floral pattern, and black heels. I kept the jacket and the same simple stud earrings and rings that I wear every day.
I love knits that fit closely, but aren't Kardashian-clingy. I also favor items that are easily steamed. Not too much that has to be ironed. And I'm gradually getting away from dry-clean only items.
I haven't needed anything truly formal in more than a decade, but I'm a thrifter, and I have a couple of dresses ready to go, should the opportunity present itself.
At a quick glance, the capsules I'm working on are 1) underpinnings, 2) pretty shoes that are flat- or low-heeled, and 3) A new bag or two. I'm taking my time with this, and enjoying the process immensely.