I'll keep my feedback relatively brief, since a lot of my feedback was already sent a while back. I tried playing on the hardest difficulty and going the non-Berton route I ended up not surviving the castle entrance. I don't think it was unbalanced really, I just didn't have time to go back and finish it, so if I missed something there (and from reading the devlog I don't think I did?) I apologize.
First off I'll say I only encountered one new bug in my playthrough, and its a somewhat obscure one that can be easily bypassed. In the temple if you speak to the woman by the matron it just opens a lorem ipsum dialogue that can't be exited. But I was able to fix it by just loading the autosave.
A good thing I noticed is that enemies seem to be more aggressive and co-ordinated in attacking the player. The pathfinding is still janky, but I didn't see any enemies milling around in the opening sequence like I did the first time I tried this game.
As much as the original release allowed me to kill mostly everyone, I appreciate that its been extended further.
I think the extra sidequests were a good addition, they made the area outside the village feel less empty, and provided a bit more worldbuilding. I think they're also a fairly unobtrusive way to include the ability upgrades. The attack speed increase I especially appreciate, though to be honest it does make me want a game in this style with really quick melee attacks.
Speaking of worldbuilding I loved the lore additions in the temple, the idea of the 4 gods/aspects being represented in the icon seen on the outside was neat, because I don't recall there being any explanation previously. I especially liked the design of The Beast, and frankly I always find the evil/chaotic gods interesting in fantasy. If I had a suggestion for further content in this world, I think "Beast Cultists" could be a neat one, whether they're like fanatical Cthulhu worshippers or independent people with their own agendas like characters marked by The Outsider in Dishonored.
Other areas I think would be neat would be more exploration of the East, since it sounds like in this universe its more "wild" due to the mention of warrior women. I imagine groups similar to nomads from the asian steppes or the Fremen from Dune, but whatever you wanna try out I think it could be fun.
Overall I liked the update, and I'm sad I didn't have more time to try it out and I didn't find the hidden level. But I'll definitely try it again when the next update comes out.