Khugdihr - Successors of Asra - allow completion if you've already completed the crown
Haraz Orldhum - Emulate the Old (downstream event) - allow the gov reform unlock to be used by theocracy/republic (note: yes, I should rename it for them but I didn't)
Amldihr - Vale's Bounty - allow inactive irrigation to count
Haraz Orldhum - Platinum Age - allow the mission to complete if you have improved capital infrastructure anywhere. You don't need a HO capital

Gor Burad - Escalating the Situation - will also be completed if you own Ovdal Lodhum's hold
Ovdal Lodhum - Lodhum Sheathed - now allows legitimacy alternatives from republics or theocracies
Gronustad - Decorate the Nobility - allow Orldhum Adventurers in place of Primacy of the Nobility