I think that depends on the character and circumstance.
I know there will be “short” stories about some of them. And by “short” I mean novelette. Not sure I can write in less than 200 pages.
But I’m thinking of doing short stories for several, and not sure if those will be in an anthology or just free on the web/this site.
Right now, thinking free on this site, and then collected for people who want a “volume/book” and charging a minimal price for the anthology, they could otherwise read for free here at this site.
comments/thoughts/recommendations welcome…