They are ending for a year. Because they want もっと見る chapters before continuing. Its just like the grand magic games, they left in the middle of the arc, and thats what they are going now.
no offense but... SPOILER ALERT FOR THE マンガ NO OF COURSE NOT THEY ALREADY DISBANDED ONCE AND IF U READ THE マンガ WHEN MAVIS'S GHOST GOT HIT WITH A SPELL THE CRYSTAL TO FAIRY ハート, 心 BROKE
