A character like Ania Solo? Yes, Please! Id be very happy with a female lead if well written/acted (my same requirment for male leads), but not alien. Sorry but keep the leads human for the vast bulk of the spin-off movies, and always in the Episodes. As to the sex of the character please change it up constantly, imho that means a female lead in the next Episodes is potentially a very good thing (we've had a 2 to 1 male to female leads thus far, and thats only if be gracious... so I'd be very happy with a lets say 2 to 1 female to male leads this time).