Champions League reform : Starting 2018 Italy, Spain, Germany and England will all have 4 locked spots for "Historic Merit" [Italian]
There are talks about qualifying clubs for Historic Merit too.
For Example : AC Milan comes 6th in the 2017/2018 Serie A Season,
The top 3 will qualify directly, like usual but the 4th spot goes to AC Milan even if 6th because of their place in History.
Let's say Fiorentina comes 4th, they won't be in CL the next season.