As usual, some spoilers ahead. Read at own risk.
The funny thing about my game was that the paladin in the party is apparently making a strong effort to redeem Triel. Since this was the first time my PC's ever did anything but kill their enemies, this was behavior I wanted to encourage despite the fact their Diplomacy skills were nowhere near what would be needed to convince an evil cleric to renounce her god.
The PC's convinced the Cuthbert temple not to assign her a death sentence. Jenya was unable to ignore Triel's role in Sarcem's death, though, so Triel was exiled from Cauldron and sent off to a Saint Cuthbert monestary (the city authorities allowed the temple to handle the case, expecting Triel to be executed). The paladin was under the impression that there were monks with better Diplomacy than herself were going to pick up where she left off.
However, Triel found the monestary very boring and escaped within days. She joined Hextor more for the martial aspects than the evil aspects, so I decided the paladin's efforts were enough to make her Lawful Neutral. She still worships Hextor, and she still gets spells, because 1 step away from the god's alignment is permissible. Now she's seeking out the only person in her life who was nice to her... the paladin. What she will do when she finds her, well, neither Triel or myself knows yet!