An official release from Disney confirmed that Marvel Studios’ What If…? will keep its originally planned Summer 2021 release timeframe, although no release date was specified.
The synopsis remains as follows:
“What If…?” flips the script on the MCU, reimagining famous events from the films in unexpected ways. Coming to Disney+ in summer 2021, Marvel Studios’ first animated series focuses on different heroes from the MCU, featuring a voice cast that includes a host of stars who reprise their roles”