They would have to limit entry to the original purchaser then and check ID upon entry. People wouldn't be able to give their tickets away either. I believe they will be having electronic tickets only anyway.
I will happily opt out of my tickets for a refund so others can go if they wish!
When tickets are being allocated in such limited fashion, I don’t think you should be able to resell it, to be honest. While you own it, this time the ownership is more privileged due to the limited nature, IMO