Analysis of information sources in references of the Wikipedia article "코로나19 범유행으로 영향을 받은 영화 목록" in Korean language version.
It is unknown when exactly Snow White will start production, but I’ve heard that the studio is looking at a September/October start in Vancouver, Canada. Also, Disney would need the okay from the Canadian government to begin filming as they are keeping a firm grasp on their citizen's health and safety due to the COVID-19 outbreak.