as for a Female Expendables: Jennifer Garner, Jessica Biel, Rachel Nichols and Adrienne Palicki should be in it with Angelina Jolie and Kate Beckinsale.
Most of those are too well known and too 'current'. The whole point of the Expendables series is to get aging, washed-up has-beens or "one-hit wonders" and give them one final shot at glory.