SM likes to overlap. Personally, I am expecting Red Velvet in June. Because Seulgi said wait for Red Velvet after Wendy. It happened Red Velvet CB in late May or early June. Then the Aespa comes at the end of June and the beginning of July. If this happens, they are not considered to have overlapped. I hope it will be like this.
Hope that RV & Aespa is under same departments then. I still remember Boa said SM doesn't know which artist making the comeback and their departments don't know each other schedule . Sm schedule kinda messed up especially on the second half of the year prepare for the worst scenario