Free Champion Rotation Idea

Hey guys, i think i might have a cool and new idea over the Free To Plays. the idea is: a site or poll where you can vote for champions to get in the free to play next week, the top 10 will be picked. this is a way to make you guys decide who's coming. but i see you thinking, wouldn't it always be the same champions? no, thats why i tought of this system that keeps track of the free to plays and the ones that have been picked already can't be picked until all the champions have been in the free to plays. so for example: week 1: top: Darius, Riven jungle: Lee Sin, J4 mid: Xerath, Ahri adc: Vayne, Sivir Support: Thresh, Blitzcrank week 2: now in week 2 you cant vote for the champions in week 1 and in week 3 you cant vote for week 1 week 2.Etc top: Garen, Fiora jungle: Gragas, Hecarim mid: Jayce, Ekko adc: Kalista, Graves Support: Brand, Braum Etc.

Pros.

this allows people to vote for the current META and the trending champions in their lane as same as the others still will be there after a little amount of time. people will be more happy with champions that fit in at that moment

cons. after a while the "shitty" champions will come and no one will be playing them(but maybe we can think of something here)

let me know, what are your thoughts about this why do (not) you like it?