I don't know how this works in game, how much advantage does these current roles really give the player over AI parties? I mean, lategame a scout, steward, engeneer and surgeon provide lots of benefits to their parties, is none of these benefits given to AI parties or they all look at the partyleader? If they do the latter, most clans does likely go backwards rather than forward in their "role-quality" while the player massively goes forward. New/more roles adds to this loss for AI
The "easy" solution is to give AI companions too
Othervice I´m all for it but it would require a re-work of the perks for charm, rougue, tactics and trade for them to give something to parties with someone of that role