When you click the leave league button, of course you will leave, but if you play another ranked game and earn trophies will it place you in a new one? If so, will you join a league that is currently already ongoing or will you join a league that is brand new?
If you leave leagues, you shouldn't be placed in a new division unless you rejoin. In that latter case, you'll be place in a new division that hasn't started yet, unless you managed to be the 50th person in it.
When you click the leave league button, of course you will leave, but if you play another ranked game and earn trophies will it place you in a new one? If so, will you join a league that is currently already ongoing or will you join a league that is brand new?