Thank you very much Stardock. You're almost too kind. Please charge me for the next expension. 
..And thank you once more for the development of Fallen Enchantress. The game really is a gem, and now it's potential really starts to be fully exploited.
Wishes for the future to further build on the potential of this game: Naval features (sea quests, naval warfare, naval yards, naval techs, naval hero traits, naval units etc.) and multiplayer. 
NB! I also agree with OP that mounted units still are too good and cost effective. They should have an insane training time/cost, so you just built a few elite ones. They could also have some downsides like less accuracy (think firing a bow, or waving a sword from horseback) or/and be very vulnerable from spear/pike-units.