Bring back the empire factor screen from the original Endless Space. That thing was helpful. Ever have no idea why your approval is low or one of your FIDSI just suddenly drops or increases? Just place it in the quest screen or empire management screen, where it gives all of the factors. Also have summary of all those quest effects so one doesn't have to scroll through all the active quest effects.

Example from original ES:

This from my last ES1 playthrough as Harmony

Obviously it would look nicer now, but look how strealined it is. I don't have to go to three different screens to get all this information, when it is all here. There are different sections for an empire-wide factor and a system or planet based factor. Events. quests. You name it its here.

Perhaps even have an economic tracker. Give all the values of all the FIDSI from every planet, then every system then the empire as a whole, and have it explain the values as it goes along. Maybe, just a thought.