They could even make a sort of online pool where everybody could upload their hirelings, and then you could hire other peoples hirelings if you wanted to, each with their own backstories, class, unique apperance etc. etc. I think a lot of people would love that. I mean if you look at the Steam Community Content for a game like Pillars of Eternity 2, a lot of the posts are basically that; hirelings/adventurers that you can load into your own game. Personally I would rather make my own, but it's a great "community" thing to do that will appeal to a broader audience. Might also be a great way to start your game if you have no idea how to make a cool main character.