Why is there no attractive new female champions anymore?

My first post, so please go easy on me... So why do you think,is that the last widely considered attractive female champ, Jinx was released nearly 3 years ago and since then, nothing. I mean you could argue for illaoi, kindred, kalista or taliyah but it's kinda forced. Riot knows its players and a new attractive woman champ would be a jackpot for both male and female players, just look at how popular are Jinx, Ahri or Caitlyn.