Optimistic I think Germany has cancelled Oktober Fest if that's anything to go by I cannot see gatherings in the UK for sport etc for some time yet. Maybe held behind closed doors though at some point.

Still waiting for the killers concert to be cancelled which for us is on the 13th June in Middlesbrough as yet no news but doubt it will go ahead, was looking forward to that as I'll be 60 on that day

Magic Weekend May be held later but it will not be in Newcastle

They'll probably hold it in Michigan where Trump's acolytes will form an armed guard to uphold their right to congregate and carry sub machine guns.

It all depends on the case.
I claimed for tickets I bought for one of the Christmas adventure places that went bust. Got my full money back straight away.
Just depends whether it is contested I guess.