Would love to see a greater variety of more diverse and more realistic voice options for zois. Right now the default voice for both male and female zois feels rather generic / overly enthusiastic which I think can contribute to the uncanny effect some people experience with zois.
Eventually, would love to see different voices for each age groups (toddlers vs kids vs teens vs seniors should all ideally sound distinct) or maybe down the line, even account for differing personality types (e.g a charmer zoi might sound like a smooth talker while more introverted personality types might be more soft spoken or quiet).