Ok I have gotten to the end of the game with Minthara, there is a slight suggestion you are together, atleast as travelling companions at the end but nothing concrete. She likes that I'm a squid, and is sad she can never return home.
I am, surprised but how much of her content is seemingly random? Her interjections and comments are amazing, but throughout the game they are.. random? maybe you get her maybe you get another companion saying something in that slot. For a character you have to recruit in such a round a bout and unlikely to repeat in future playthroughs way, it is weird so much of her content will never be seen in one play through. I have seen a lot but likely missed even more, it's not often I died and reloaded to even notice that dialogue changed. How many times did Laz or Asta make a comment that there is also a Minthara comment that can trigger there but I'll never see?
It'd be good if when a companion had a line they could say, all companions would say their line not just one or two? so that voice acting and content isn't missed by random chance?
Additionally plenty of her lines are outside of dialogue, so you can miss them either by them not triggering or just through missing them, some of my favourite things she said were blink and their gone while walking around?
I am returning to my main point which is nothing about her story, arc or character is dependent on you killing the grove, that issue comes up in exactly one conversation, and she is fine with 'good' options after you recruit her as good options accrue allies and power, things she loves and she hates the absolute so, she would be fine with working with and being a member of a party that defeated her in Act 1, allying to power is her thing second thing after stopping the absolute, a good path act 1 Tav meets both those criteria.
So she NEEDS to be changed to be recruitable in Act 2 whether you side with absolute or grove in Act 1, have her escape or be knocked out or etc in act 1, so you can rescue her from the prison in act 2 no matter your act 1 choices. She works with that storyline, and having her viable for all playthroughs would allow her to be a fully fleshed out companion after updates!
Petition to have Minthara recruitable by players who side with the grove!