I’m still optimistic the event will happen. Of course, that could change at any moment, but I think there will be enough pent-up demand for people to want to do “normal stuff” after months of these lockdowns to go to the event. I doubt you will see more lockdowns around the time HHN will be going as much fewer will likely comply with them.
That being said, if you want to go to HHN at all this year, I would not wait to go until October. At that point you’re playing Russian Roulette.