nothing new as this is simply a sum of what i posted in the suggestion forums but reading the patch log i notice that you want the game to be more of a chalange hence the buff to bosses and nerf to repair keys but instead of buffing monster why not simply apply a nerf to lumber production? say:
building speed of structures are now based on a research rather than on how many factorys/ repair bots you have around said building, this not only makes lumbering harder by adding an extra cost, but olso removes the need to do the same task over and over and over wich is nothing but an anoyance.
second thing is that transmuting aka minimills should come with a drawback, i know they are neccesary for lv 7 mills but watching how everyone rush to get the alchemist just feels wrong, heck the few F.S matchs i find is not uncommon for players to leave the match with a nice "f*** you" if someone else grab the alche before them
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third thing will be to make librarys more valuable, a research that increase their production would be welcome