If my memory serves well, the CL spots are calculated by the order:
regular season champion -> superlega champion -> superlega runner-up -> regular season runner-up -> regular season 3rd winner.
If this is true, Perugia, Lube and Trentino (regular season 3rd winner) will take 3 spots of CL next season. And Modena only got a spot for CEV cup.
1st: League champion, 2nd: Regular season No.1, 3rd: League runner-up, 4th: team with the highest regular-season ranking beside 1,2, and 3. The regular season no.1 cannot be higher than Scudetto. Otherwise, the playoff is meaningless.
CEV Cup spot goes to the national cup winner (the same for all european leagues). If the national cup winner gets the CL spot, then it goes to someone else.