My plans were to keep a loose leash.
I'd like to prevent OOC conflict as much as possible and promote a strong narrative.
I know it's going kinda slow as a start, it's because we have a large amount of players and it's a new and tricky concept we're playing.
So if the niece offers up a vow to take revenge on a god, yeah I think that's a pretty strong sacrifice, and maybe another god might be interested in that.

I do suggest to take it slow. give other players the chance to introduce characters and get to the feast as well. They might want to interfere.