Here's my attempt to describe the most important problems with Strat 4 and then identify solutions to solve them with the minimum of work
Problem 1: Too much of an advantage for defenders after winning a siege.
Solution 1: Destroyed walls should stay destroyed for a minimum of 24 hours after a battle and after that they should have to be repaired using PP.
Result: If you re-attack a Fief within 24 hours you don't have to redestroy the walls. After that you may or may not have to depending on whether or not any PP have been saved up for repairs.
Problem 2: Voting is a bit too hardcore
Possible Solution 2: Remove the element of choice for normal faction members and make them automatically vote for their own faction in their nearest fief. Faction Leaders then select a candidate for each fief from the list of their members voting for the specific fief. So if 3 of my players vote for Jelbegi, I pick which one of them they are all voting for. To stop clans amassing votes there should be a gradual penalty in vote strength for clans over 100 members. To stop people joining other factions just for the voting then there should be a Strat Tick cost for swapping factions - you can go negative in Strat ticks due to this but won't be productive again until you regain the lost ticks.
Result: Hopefully less stress on vote day
Problem 3: It can be hard for small clans to fill rosters
Solution 3: Smaller rosters for smaller battles. Big battles (1000vs1000 and over) should stay at 50vs50 but the small 100vs100 battles should decrease to 15vs15 imo instead of the current 25vs25 (ish). Everything in between then scales. On top of this allow all players to create a pseudonym for playing strat anonymously. If your cover gets blown its your own fault but you can fight and build the reputaion of your fake character as if it were your main and use it to fight without worrying about diplomacy.
Result: Easier to fill rosters
Problem 4: Hard for individuals to protect what they have vs bigger clans/alliances
Solution 4: Increase the level of free gear slightly and then give it to both sides in all battles, regardless of what gear they already have. I'm talking Aketons, Nasal Helmets, Hunting Corssbows, Nomad Bows and Simple Swords here.
Result: No naked battles ever and the gap between the best and worst equipped armies is narrowed.
Result: