Except in the top server, in the case that there's 1 league only there with 14 teams, all these join the CL + the teams of the proper levels.... same with the Cup, what we called "Shark Cup" here since time ago...
Just as info'... by the way I keep my thesis about the creation of a top server and punish inactives with the decrease of training and building levels.
A relegation zone only can be implemented IMO if all the players over 5* are sold... buuut.... xD