This is kind of out-of-line with other speculation, but I think it would be incredibly smart to have a female-centric year this year. Considering that "time's up" (literally) with the Terra Queen, it might be interesting to watch the Storyteller conjure characters like (S)Cindy, Chance, and Lady Luck to headline the event this year along with the Terra Queen. It would certainly capture the feeling of our current global mood (as they have done with the theme of "nostalgia" for the past few years) and would definitely get some of these hidden-ish characters a chance to come out of the shadows.
Additionally, a lot of women of all ages audition for HHN, and it seems like Universal is always looking to create roles that women can fill. There are a lot of talented, scary women that audition, but lots of horror IPs can skew male in terms of antagonists. Houses like Nightingales and Us tend to do quite well and create more scary female roles - I think they'd be wise to consider it.
Then again, Universal is sometimes strange with "politics" - though I personally see this as inclusion rather than politics. In some moments, I can see Universal being ballsy and doing something like this as they would with Bill and Ted, but obviously there's a change occurring to the event in more ways than one.