I read the recommendation of providing keys for educational institutions - I am a teacher in a school and the fact that my students have to buy the game for 30€ makes it impossible to use it in any way. So I would take those free keys for sure. Nevertheless, schools are provided with free keys from all sort of software and that wont trigger some (meaningfull) press. There would need to be some sort of competition, curriculum or something to make it an acceptable use of time in school.
I think too that you should concentrate on giving the current player base something to do. Those improvments, better graphics etc...are fine and shows your devotion to the game, but thats not for the "old" players.They already bought the game and are fine with it.
I also like your style in being honest and transparent. I can also concur with your definition of capitalism. So I think the talent and character of the factorio team is really wasted in developing factorio for ten more years. You invested alot of time, money, sweat and tears and made its way, it can walk now, and it wont turn into a monster, what ever comes. I suggest letting the game go, sell it (for big money) to an investor which makes content aka DLCs, console adaptation etc...for the fanbase. That will be best for the fanbase - and for you (I think).
I would love to see the factorio team take a fresh approach for some other game in the same genre. As a star trek fan I would wish it maybe something more ... bright
![Smile :)](./images/smilies/icon_e_smile.gif)