Sorry, I wrote through a translator
I have a couple of ideas, both essentially parasitize on the ideas of the previous part of Planetfall. But with slightly new ideas.
The first is the empire mode. Everyone liked this mode and it took the game to a new level. It can be added essentially without changes, you capture worlds with different modifiers and get a trophy that opens access to wild creatures like Karagh or the Herald of War.
But there is also a change to add the ability to create an empire of enemy godirs. You configure which godirs are included in it yourself. Choosing who is the main leader and who is secondary from the godir. You can add directly from the pantheon with ascension skills. A maximum of 2 enemy empires can be created. And they, like you, want to capture other worlds. So you have 4 worlds to choose from and one or 2 are under threat of capture by these empires. If you capture another world without engaging in battle with them, you will notice that the worlds have disappeared, and their trophies have gone to the enemy. Which directly affects the gameplay. So if they got a trophy that allows you to hire war messengers, then they will hire them in the cities during the confrontation.
Worlds can be captured by both the leader of the enemy empire and his secondary godirs. Secondary ones are weaker and cannot hire additional godirs. The main godir initially has a stronger army, starts with increased aggressive intelligence, and additional random godirs from the secondary composition join him gradually. (as well as you)