Next champion - Jinx's sister?
yes, no, maybe? If yes what should be her role? What abilities should she have? What should she look like? What would be her lore?
yes, no, maybe? If yes what should be her role? What abilities should she have? What should she look like? What would be her lore?
I think that quote ("You think I'm crazy? You should see my sister) could be seen as double crazy because she doesn't have a sister. Idk if I'm saying it correctly, but do you know what I mean?
No.
Quite frankly, I think we've got another 10 or so champions before Riot would consider releasing "Jinx's sister" as a champion, and even then it's iffy.
They already did?

They already did so via Vi, so I say No. If you want more info as to why, I would give you an idea of mine.
I always interpreted: "You think I'm crazy? You should see my sister", as her sister being a very sane person, because for a madman the sane are the crazy folk.