As one who has "scouted too far", I'm currently in Fairies & have unlocked (but not built) the Merc Camp, and am in the process of unlocking Drone Riders. I have not won a single fight since the battle changes (I used to be a good fighter), and I have completed all but one Squad Size Upgrade that is still left to do in Fairies. I have tried every single province I currently have open for fighting/negotiating (24 of them), and I have fought every battle with the least number of enemy. I've lost every single one. Can't negotiate any of them due to Orc costs, which I cannot pay as I am in Fairies (I ran into Orc costs while still in the Dwarves chapter).
I have read that basically, I will be unable to succeed in battle until the Tech catches up to where I have explored to.
I've scouted 225/160 provinces required for Orcs. Are the Blossom Mage & Drone Rider going to do enough of anything to help me win any province battles, or are they basically another non-issue for me since the battles are designed to be unwinnable if your troops are outnumbered? I'd rather not waste the space on buildings that don't help me right now if I'm not going to get anything out of it.
I'd love to hear opinions even if they are not certain or haven't completely played out yet. Thanks!
ETA - I'm also not planning on building the Training Ground for Cerberus back in Chap II unless I'm getting something out of it (I know it's voluntary for now but will be mandatory later). I will go back & fill in the Elite Archer though.