Because of the length of time that these cases usually take, I'm going to guess that this case will last past the point where the COVID-19 emergency is declared largely over, and the Commonwealth says that most retail business can re-open. When that happens, the state is going to try to moot the case. (as with the NYRPA v. NYC case)
The state's pattern of vindictiveness and gross overreach puts it in the same position as the NYC case in terms of being significant enough to potentially not moot because of the state's demonstrated willingness to engage in improper behavior. Just because the state stopped, doesn't mean they won't do it again under any circumstances and that's unacceptable. If anything, the state will keep engaging in the behavior under the flimsiest of circumstances (oh noez 'gun violence' 'epidemic' in shithole city in one part of the state SHUT IT ALL DOWN until the gang members stop shooting each other and turn their lives around in the music industry!!111) until it finally faces legal push back.