Ariiah would probably let out a loud, mournful scream of pain slowly dying down into a whimper and then silence. …it’d probably be terribly haunting, to be honest. Not really much in the way of any final words. Not if it was a sudden attack at least. If she had more time she’d probably try to appeal for a peaceful resolution.
Veroneka would be reluctant to fight, but once clear that it’s life or death, she’d definitely fight hard… and she happens to be impaled on her attacker’s weapon, she’d make damn sure to spit her blood in their face. One final act of defiance before the bitter end.
Probably no words as he is dying since those would be hard to get out when dying. He also spent years stewing imprisoned following the Black Temple and lived through Garithos. Guy’s view of the humans is that they would commit genocide against his people if given the chance.
Kaitheas is likely to die outside, at night as he is a druid and sleeps during the day like a proper Kaldorei. So he would probibly spend the last of his energy to get onto his back and just lay there, staring up at the stars as he fades out.
I like to think his outro would be Zulf’s Theme from the Bastion Soundtrack: Mother, I’m Here.