Well, when I last looked there were spaces available but I'm waiting for TPWW to visit this Saturday before I decide to go or not. I currently am using FB comments concerning various garden centres to see how they are managing social distancing so I'll be interested to see what Shawn says on the opening day. Also as he's filming it, I'll be able to get a look myself at the measures in place.
Apparently some European theme parks are charging pass holders a small fee. I heard somewhere it could be to stop pass holders from not going. Therefore they are reserving their place, not turning up and someone else could have used it. But if they've paid something that might encourage them to go.