Not sure if this is a bug or something as changed since Empire divided has dropped but my imperium hasn't increase from the starting position despite massively expanding my territory and near completing the research tree.
Is this a bug or do these not influence how an imperium increases anymore? Getting very difficult to hold off on all fronts with only 2 armies and 1 navy left. (Lost one army and can't raise another as my imperium is too low.)
I've also had this issue on the wrath of Sparta recently.