Even among economists, whether the impact will be deflationary or inflationary is a controversial subject. A decline in demand due to the impact of COVID-19 exerts downward pressure on prices of goods and services.
I think that the impact of COVID-19 on prices through the demand side will be relatively large, but it also will be exerted on the supply side, mainly due to restructuring supply chains and limiting the number of customers to avoid crowds. In case of supply-side constraints, upward pressure could be exerted on prices.