If it is mostly the elderly and health compromised dying then the economy will rebound dramatically once people are allowed back to work.
In 1918 flu pandemic if you didnt die fighting in the trenches then people in late teens to late 20s were at high risk of flu death. Yet immediayely afterwards we had the roaring 20s that led to the great depression.
Covid19 seems to be mostly hitting the elderly and people with other serious medical issues. In another few months it will have caught up to seasonal flu deaths this year. On the basis that workers are ok I think we will rebound hard in 4q 2020.