heres some things that arent essental, just some features that would be Fun to have, almost none of it is combat wise so shouldent get in the way of things.
1. the Option to change the Slaves names, Mercs have Names that come with them, i think if we examine a slave, it would be better to Have a name to them rather then just having the generic "You see a Slave." i'd Prefure to see my Slave with "you see Rose" when i look at my adopted daughter.
2. Dialoge change for people who arent there owners, instead of seeing a lil girl say "we're watching you" (lil creepy) to something we enter in the say menu, diffrent cattagorys to things, like when they go into battle, some of them talk like Sulik, kina funny, but still not to the character.
3. The Choice on how to treat the Slave when we talk to them in Dialoge, Default would be how we already talk to them, Friendly Mode makes you treat them as a friend, Merc Mode, were you talk to them like they were Mercs, Family Member, and maybe other options too, also a way to change what they call you, instead of just Master, None of this should change the other options such as "i would like to change your master" options, though maybe label them to what Personality you chose.
i'm guessing Role Players would find this interesting, or people who would like to Catigorize there Slaves