the most anticlimactic way it can end, and also the most realistic, is for Riona, like Mona, to drop out of college once freed. this would increase the uncertainty of all the HOts but without really changing anything.
let's start with the certainties: if anyone is going to intervene on Riona's behalf, it can only be Quinn, who is the only one who knows about the kidnapping. this can either solidify the relationship between the two with Quinn continuing in her transition from nemesis to nemesis of nemesis, or end their relationship completely, this could lead to the final confrontation between Sage and Quinn, but it seems to me unlikely to be a situation that deflates in one chapter, especially in the penultimate chapter of a stagi