I think we need suggestions that would not break saves, so they can be used for an update or an expansion pack.
Armor: a rough and easy fix would be double the vitality for all characters, but they receive 2X damage if lose both armors. Controls might be quite handy under such system when you only break one armor of the target.
Initiave: change to the classical move order system, character with higher initiative move earlier. But investing on wits should have diminished returns on initiave, so the first-mover advantage would be more in proportion to its disadvantage (less points for other attributes).