Then came ... The Scorpio Races. At first I was like: huh? A race with flesh-eating water horses? But I really enjoyed the book. Fantasy + horses = something that clearly works.
Now I see that in 2016 there are not one but two YA books that seem to involve horses. Titans features mechanical horses. Maybe a sort of steampunk horse race? Riders has something to do with the Four Horsemen of the Apocalypse. Both sound intriguing.