I’d say a lot of these complaints stem from a lack of conflict between scions. I’d think a misfit band of adventures who stick together out of necessity would be more interesting than another group of super best friends.

I’d say there’s potential in inverting some scions as well, namely Graha, Urianger, a twin (not both), or even the cat girl.

I don’t think the completion status of a particular arc should be the first concern, however.