There is one store in Studio 1, but it's not as big as the Emporium and I do not think the selection at this shop particularly unique. The one in front of Studio 1, on your left when you enter, has a better selection, in my opinion.
There is a Pandora shop as well, but there is also one in the village.
And how will it work, I assume they will open the walkway next to the Studio to let everyone through to the park. They sometimes use it on party nights, I think it was open during the half marathon weekend in 2019.