Unfortunately calming Arka down by mentioning Kanon has no effect on her outcome post-party.
As has been pointed out in
this post two years ago; even when Arka is completely calmed down by mentioning Kanon through the most peaceful dialogue options, she will still end up dead at the gobo camp after the tiefling party, despite peacefully coming to terms with what happened to Kanon.
The only thing her dialogue affects is whether;
- She storms out of the Grove immediately out of frustration to die
- Or comes to terms with what happened and gets ready to leave together with the tieflings, but the game once again still kills her as if she went to seek revenge
Arka's arc is a story between destructive revenge and inner-peace, but unfortunately her inner-peace outcome has been broken ever since the Early Access days so it keeps spawning her corpse at the gobo camp no matter what, instead of spawning it next to Memnos in ACT II.
