I my mod I made different balance options for the players to choose in the gamemode setup, I saw the same idea previously in the freespace mod, not sure how they worked, but mine does using different versions of the same ship for every balance mode and some others are affected by automatic research and restrict, but the last update could help this type of mods. Some modders are still figuring out how to correctly use there new methods, I took the lazy path and kept using the same method I started back in HW2, since it worked I had no use to change it.
Also I made some options for squadrons toggling, new ship maneuvers and made my originally integrated bullet system optional through add-on, mostly because incompatibility with the HW1RM Campaign.
I think most of the Ideas like the ones I mentioned were already done in the past HW2 mods, but if now we would be able to change things like attack scripts, squadron quantity, price, hardpoints, weapons, ship stats and behavior, on the fly that would open up for a new world of ideas to implement.
To add for the almost impossible mods, I would like to make an Tiberian Sun based mod in space, I would mostly need a modeler and texturer for that, like everyone else.
I even tried modeling myself, with no success, I'm too bad for that, I've even bad for kitbashing LOL!