I agree with your over-arching concern that troop production is still being missed...not necessarily the way you attempt to deal with it.
Imo, the techs, resources, and traits are what give your troops the uniqueness they deserve, and the edge you'll need to defeat other factions. I wouldn't touch that.
I do agree that production costs are still too high, but the problem goes deeper than that: The city queue only has so much room and at the moment, troops are at the bottom of that long list: Pioneers (50%), Resource Improvements (30%), City Improvements (20%), City Idling
, and finally troops (0%). (okay, I tossed city idling in there....I have no idea why cities ever want to idle...).
Just recently in my Pariden game, for the first time, I have had oppertunity to build troops on occasion. I was able to shift city queue production to the following: Pioneers (20%), Resource Improvements (30%), City Improvements (30%), Troops (20%). The reason? Arcane Monolith. Essecially, I didn't need to build the gobs of pioneers required to construct outposts. This is the right approach to solve the problem, or at least a good chunk of the problem. Now, I'm not saying that each faction should have access to Arcane Monolith because you also need the mana to go with it....and Pariden loves some Meditation. But I am suggesting that another mechanic be used for building outposts. The ideal percentage ration I'm aiming for is: Pioneers (5%), Resource Improvements (25%), City Improvements (25%), Troops (40%), Scouts building Outposts (5%)...see below.
In other threads I put forward the idea that Scouts pick up the task of building outposts. Scouts are a really cheap, expendable, and currently very useless, unit. Why not have a purpose for them? After the 'scouting' portion is complete and some valuable resources are found, why not allow them to stake a claim to them through the building of an outpost? True, scouts still take some time on the queue, but being separate from the pioneer, Stardock now has specific control as to how much time that amount takes. They are naturally cheaper than Pioneers to begin with. Obviously, oupost
Alas, the idea was not put into fruition, therefore another solution needs to be found. Still working on it...
One idea that I've been toying with is giving each faction a unique way of building outposts outside of the city building queue. The problem I've been having is that there are only so many ways to build outposts. Mana...gold...production...crystal....metal....influence...that's about it. Toss in the balancing problems and it's not looking up to be a successful idea.
Anyways. Those are my thoughts on the lack of troops production.