Hey, do you have any specific features in mind?
The essential things (which were not outlined in the release plans post) that need to be implemented are (from most to least important);
- Messenger System, could be landline as well
- Clan leaders offering to join your faction on their own
- Better armour protection against ranged damage/ranged damage nerf
- More troop tags for the OOB UI, like pike, shock infantry (2 handed or swinging polearm troops), crossbow tags, ect.
- More & better diplomacy (faction members' decision making process for war/peace, civil wars, clans being kick out & fiefs changing hand within a faction without the player intervention, clan leaders actively starting votes to pass or repeal policies, rebalanced policies, potential alliances & non-aggression pacts with other factions)
- More game start options (starting as a merchant with workshop(s)/caravans(s), starting as a criminal with 50-100 crime rating in X faction/all factions, starting as a mercenary/clan tier 1, as a vassal with 1 fief, as the ruler of a faction)
- Complete the smithing skill tree (still the only skill tree where most perks don't have secondary effects)
- More & better dialogues, especially with companions (they could have a chance to dislike other companions, which would force players to put one in a settlement or lead a caravan/party, they can also give lore info and talk about their hometowns, all towns & villages already lore written in the encyclopaedia)
Things that are not essential but would be extremely nice to have:
- It would be great to be able to play as a soldier in a lord's army like in the Freelancer/Serve as Soldier mods. The large bulk of the mechanic already exists in that we can already join an army as a solo party, commanders ordering formation captains and troop placement exists as well. The new additions would be the player promoting through earning exp, giving them gear based on the troop type they choose to be, the ability to retire from service, and to become a vassal while keeping their gear (you could make the player gain x% of the battle's renown to help them increase their clan level)
- Promoting soldiers to companions like in the Distinguished Service mod where a soldier becomes eligible to become a named character after getting X amount of kills on the battlefield in one battle.
- Feasts. Idgaf about feasts, but people really want the mechanic so just add it already. Creating a feast mechanic should be relatively easy anyways.
Only the diplomacy section in the essential category requires high amounts of effort, so I think implementing each and every one of them is relatively feasible. I have no idea how hard the items (except feasts) in the nice to have category are to implement, I would welcome them, but if by some miracle TW decided to add everything I wrote, they should come secondary to the essentials.