@Riot Who will the next overhauled champion be.

I was wondering as to which champion is next in line for their bright and shiny new rerelease or relaunch, i have seen the list that has poppy missfortune and Gangplank but i am unsure as to if they are in order of which they will come out or the scale of the update in comparison to other recently done champs (i.e. tristana & sion). Also i mean this more in a way of complete overhauls not just the gameplay tweaks like ashe received recently although those did a marvelous job of bringing a champion back into relevance without changing them too much.