Well ill just leave my 2 cents here.
I will not buy the expansion and would not recommend it to my friends for these reasons:
1) When buying a game i really expect to buy a full game, instead of "big part" and a few "small parts". The game has been out for like 3 months and we already got 5 dlcs with MAPS (each for 4-5 euros). Now we actually have to pay extra 20-30 euros for PROMISSED core game feature of large maps, and some new maps + new units/orbitals/land reskins (okay this one is debatable)? No thank you.
2)Balance issues are still there. You can compare ashes to sc2 all you want, but sc2 is all about micro, and as i recall your game positioned itself as macro game with little to no mirco management. Balancing micro is a lot harder then macro you know.
3) The game is not polished enough to actually get an expansion. Expansions are meant to "expand core product with additional functions, content etc" but what we get here is "fixes for the price of an expansion".
4) The business model of ashes. I am ok with game being in a long term development process, but arent we as a customers are supposed to get a full product? Atm we pay for a whole pie, but we get a piece of pie asap, then another piece for some extra 5 eur, then another one for 5 eur and ofc you can have the rest for extra 30 eur. No guys, thats not how gaming works nowadays. I should have listened to game reviewers saying "its stardocks, just wait a year or two after the game released and buy it then, cause it will be good and polished by that time. But do not ever buy their games at release or EA".
Why do i write this comment? I guess i still have some hope for this game, cause i see the potential in it, but i do think i will give it a new try a few years later, when the game will be polished and will have a lot of content.