We just returned last month from 3 weeks and my wife and her sister are going back down to celebrate their birthday right after you depart for home.

Don't know if your stay on the French or Dutch side but you undoubtedly know that the Dutch side has recovered more than the French to date.
I think generally you will find that you miss some places that are gone and others that have not reopened yet. But, many have returned and more will join them soon.
Traffic has gotten worse at times but it helps to avoid the normal commute times just as we do back home to minimize the stress. Some of the roads, especially on the French side are desperately in need of repair. Some amenities like an American newspaper are still not back.