I think you can assume the wedding is not going forward on August 8, or at least you have not been invited to attend a wedding on August 8. I personally know quite a few people who still got married on the date they had planned but did not include guests because of the pandemic.
If you are close with the people, I might ask, but generally I would assume you will be updated when there is information you need to know. Especially with only a verbal STD I don't know that you should expect a play by play when the couple likely doesn't know what their plans might be given the pandemic.