On thing I have noticed about the game is how boring the exploration and colonization phase is compared to other 4X games. I want more monsters,, at least 5 more, each unique in some way, and if possible some passive monsters, that violent monsters would occasionally be seen hunting and attacking that would also prefer over ships if they are present, like space whales or something. That would make things rather interesting.
And on a note of what the new monsters can be one could be a monster like a space fly that just buzz around some asteroid fields that are passive until a asteroid miner or a construction ship disturbs the large asteroid that the flys call their nest then they swarm the intruding ship making point defense and fighter ships very important to dissipate the swarm. Then at least 1 UBER monster that is powerful as well as very rare and when killed then the body will stay floating lifelessly in space for a short time allowing mining ships or construction ships to place mining stations on the beast to mine a rare luxury item that is found in the monsters body, not random, just a luxury Item that you think would make sense being in a giant space monster.
Finally some random events to liven up the galaxy more, strange wormholes that when flown near will collapse then make the ship disappear, which would make a valid excuse why you find random abandoned ships, especially those of your own race, as in they would be because of the wormhole spewing them out in the middle of nowhere sapped of energy and forced to be abandoned. Then when it comes to colonization some planets could have primitive races found on them or at least some other things other than ruins and rare resources. And also maybe due to a rare circumstance that when a planet is invaded there is a chance that depending on the defending races ingenuity there is always a random but rare chance that maybe a strategy or a great war hero could cause the defending troops to kill off a large amount of the attacking forces either causing a small enough amount of troops remaining that the defending troops will actually have a chance and win the fight or other possibilities. Basically something that tips the scale making a battle that at first was hopeless then became winnable. Home worlds or capitals would have the highest chance of this happening due to the whole "defend the homeland" deal.
Then finally just some random events that are just randomly performed to a specific planet, system, entire race, or even the whole galaxy that could cause many both small and game changing things ranging from a colony simply losing some population due to a natural event on the planet to the loss of the colony itself too a disease spreading across an empire that causes distress and distraught until a cure is randomly found but at a reasonable time depending on the amount of research taking place in the empire then finally to big events like a whole system going supernova or something even more galaxy involving like a great extra-dimensional monster appears that will go from colony to colony destroying them until brought down a large fleet or allied up against.
Allot of these was inspired by random events in other 4X games and I am just wanting more randomness and a more real sense of really exploring the unknown and have a more dynamic experience. PLease dont bash me if alot of this is not possible due to the current mod support, I dont have a clue and I admit to that, I just want to through these ideas out there, and sorry for the wall of text.