We have no idea how far along they are in house.
Exactly. I'm pretty sure, and it would make sense, that Larian has way more done than a part of Act 1
If we expect them to integrate our suggestions, I don't think that matters much. A lot of what people are identifying are pretty fundamental issues.
I personally don't expect them to integrate ANY suggestions besides maybe some mechanic tweaks that are from the forum. I am fine with that. Personally I am expecting maybe Q1 2022 or Q4 2021. This is not a BETA release, this is Early Access, which means they probably have the majority of stuff baked in and now it is simply fine tuning, and research bug reports from players for different hardware/OS conflicts, framerate for different cards etc. They are probably on the last chapters now so I am expecting a little less, or a little over a year.