Side note: Because of the colon it'll probably be called 'Horizon: (Insert new title)' instead of being a numbered series.
There's only 2 races: White and 'Political Agenda'
2 Genders: Male and 'Political Agenda'
2 Hairstyles for female characters: Long and 'Political Agenda'
2 Sexualities: Straight and 'Political Agenda'