I imagine her personal story arc will be if she can cure her lycanthropy or she finds a way to master it. Definitely interesting dialogue options with Shadowheart, Astarion who might try to bite her or Druids who can offer dome guidance/advice. Maybe have her storyline connect with that group of Werewolves who tried a coup a few years ago in Baldur's Gate.
It would be so interesting to see. I guess, she was scratched for either Halsin/Minthara or Durge. While I do think, Durge is a good addition, especially as a bridge between the old and new games, I don't think, they should have scratched Helia for that, they both have their merrits. I'm not going over my opinions about Halsin and Minthara again in detail - they were last minute additions and at least for Halsin I can say, it shows.
Still I think all of them could have had a place in the rooster, if the path for Helia was already there.
