Why is Senna already getting a prestige skin, what about the other popular champs?

Just looked in the 2020 shop.... just why... Senna, LITERALLY just released just a little while ago, yet you already have her as the first prestige skin of 2020 planned, like what the hell, what about all the other champs that are popular and have been around much longer? LIke ANY CHAMP, except Senna or Aphelios.... like Jax, morgana/kayle, ryze, sona, syndra, tryndamere, varus, veigar, warwick, xayah, yasuo, zed, vi, pantheon, nocturne, LIKE LITERALLY ANY CHAMP, but why one of the last champs you just released? thats not fair at all, and makes us feel like the old is being forgotten and left behind. Im gonna be pissed out of my mind if i see a damn aphelios skin before any other champ.