Gosh... I have never been, but I sure hope so... And that hope really has less to do with industry product as it does with the state of the world at the point that would still disallow something like that to happen.
Obviously, it depends where we are with this pandemic at that time. One thing you need to factor in is whether the companies involved would be willing to send their employees and representatives to such a potential mass gathering.
I think this all depends on the 2nd wave if there is one next winter. I am guessing many smaller companies (larger ones as well) will need to have a presence at the PGA Show. However, I think by then many companies will have moved much of their advertising to online and different methods. It would be a shame to many smaller companies and could even be devastating on those that need the advertisement if they cancel.
My gut says they try to have next year but limit the number of people in the building to 50% from what they normally allow yearly. They may extend a day or two to keep crowd levels down.
My guess is that they do have a show, but in a much different way. Fewer booths within the center itself, limitations on the amount of people both invited and within the event spaces at any time, and an expanded outdoor presence at OCN and/or other related open air spaces.