Will there ever be a way to reset champion masteries by choice?

I have a couple level 7 characters like a lot of people and I don't play them anymore but they are the characters who pop up when you look at my profile. I can't play them anymore because I am bad ( Yep...) and I would like to reset them so I can have characters I actually play be there. It would also be pretty fun to challenge myself to get the character up to level 7 again if I were to end up playing them again. This is of course just an idea that I would definitely enjoy and I am sure I am not the only one who would. So if anyone important reads this it would mean a lot if you would consider implementing a way to reset masteries. Thank you for reading this! : )