I may be wrong - but I thought that during EMH, only certain attractions were open and that the countries were not included in that list. We leave in 10 days - I can let you know when we get back!
When we were down in Feb, all the shops and restraunts seemed to be open and serving during the evening EMH. I definitely know I was able to get a glass of wine in Italy during that time. And we stopped for a funnel cake as well. So at least most places seem to stay open.
But correct me if I'm wrong. The Original Poster (OP) may have been asking if any of the Food and Wine Festival Kiosks will be open. Which is an excellent question
I don't know about the Food & Wine Festival kiosks, but try a fiesta margarita in Mexico. It's a slush in four layers of lime, kiwi, mango, & strawberry. Yum!