Not limited to Oakland but no, nobody knows yet.
WFH may or not remain the default for knowledge workers.
Urban areas may or may not benefit from WFH. People in some parts of DC are reporting a booming lunch and evening scene driven by people who WFH and want to go out to lunch, walk their dogs, get drinks after work because they have time from not commuting. But other parts of the city that depended solely on the office lunch crowd are having trouble. Meanwhile the suburban carry out places are doing great business during WFH because people want to take a break to grab lunch, but the sit-down places are struggling; unclear how that will change when covid restrictions ease, maybe they will do better with WFH or maybe not.