The new restaurant at Epcot is taking reservations. I had looked earlier today and there were none yet, setup Touring Plans res finder and got texts almost immediately 
I am not a Sushi person - but the two I’m travelling with are. So at least there is Chicken option.
https://disneyworld.disney.go.com/dining/epcot/shiki-sai-izakaya-and-sushi/