26 March 2018 Update
Only... 3 1/2 years since the last update. Not too shabby. Long-story-short: life got in the way, but things now are much, much, much better than ever. I'm not returning to modding, per se, although I am going to get out an update very soon. Essentially this update will have some minor gameplay/UI fixes, possibly a minor graphical upgrade, although the majority of it will be the faction missions for the Sun Clan.
On the topic of faction missions, specifically for the Liu, Cao, and Sun clans, I should make a comment about them. While performing the missions it may be very tempting to conquer settlements (and possibly destroy factions) not specified in the mission you are conducting, I would strongly advise against it. Simple reason is that it can either break the mission script entirely or not allow you to proceed with the next mission. If we use Liu Bei's missions as an example, once you take Xin Ye and have Liu Bei in Xin Ye's region (as instructed in the first mission) the following turn the mission will update, at which point it tells you to make Xin Ye your capital and allow your starting (Xu province) settlements to rebel. As opposed to allowing them to rebel, you can always sell them. Regardless, the next stage of the mission (defeating Jingzhou faction) will not update if you still retain your original starting (Xu province) settlements. Another example would be if you are tasked to conquer settlement A, but instead conquer settlements B, C, and D before capturing settlement A. You could break the script, meaning it will never advance or fire spawns correctly or triggers an incorrect mission, as a followup mission could require settlement C to be captured or a specific faction to be alive. As I said, I know easy targets to expand your kingdom are extremely tempting, but it would be best to refrain from that, and only conquer settlements and destroy factions as specified in your current mission. And finally,
ensure that you read the objectives! Each mission will have objectives clearly labeled at the end of the mission text. Read them. Seriously, read them.