As I said in a comment on that post, with this being my first game, I learn a lot of lessons as I release each update. And boy, do I hate learning.
This update, of which I'm currently entrenched in thousands of lines of dialogue/script files, is a massive one. I genuinely believe the length of time that it's taken me to put this one out will be the longest, due to not learning (or being able to apply) those aforementioned lessons. In other words, future updates shouldn't take so long.
I know delays suck. All I can say is that Days 14-16 will be out soon.