I'd really like to see more of a dishonorable playstyle not necessarily rewarded (can still be hated by all lords, etc.) but with more options.
Fleshing out and maybe adding in some additional high level bandits/merc companies that only follow folks with negative honor would be cool to me.
Something maybe with Emblem's - using these to influence other nobles/monarchs? Like a benefit boost, or pay emblems to follow you, etc.
Paying emblems for prosperity boosts on villages/towns/etc would really be cool as well. I'd do this, whenever I start out as a vassal with a village that is getting raided constantly, I'm always trying to build it up.
Below this would be nice but I'd honestly rather see freelancer fleshed out more/implemented as you are planning to do. I've never really liked it before, but am quite excited to try it once you get the redesign done.
I'd love more of a benefit into marriage or diplomacy with lords. Looking through tickets now:
Marriage benefits, I dig some of the ideas here:
https://www.assembla.com/spaces/windyplains/tickets/471#/activity/ticket:
Pay for a return of a vassal:
https://www.assembla.com/spaces/windyplains/tickets/1428#/activity/ticket: