Previously, Super Junior surprised fans with their 'Super Junior Calendar 2018', hinting at Super Junior promotions including units, full group, solos, and more every month for the rest of this year. After Super Junior D&E's comeback on August 16, reports say that a full group comeback with Ryeowook is next up. 

Ryeowook was recently discharged from his mandatory military service in July. Super Junior then headed out to Macao to film their full group comeback MV. However, Heechul will not be participating in the September group promotions, either, in order to focus on his health.