Morris and his twin Josh are eligible for England through their grandparents.
“There’s been no chat between Wayne and us about that,” Morris told media.
“It’s something from left field – but you’ve got to keep your options open.”
Both Morris twins have played for NSW and the Kangaroos.
Asked about how it would feel singing a different national anthem, Morris said: “I don’t even know the national anthem.”
“I’m sure Wayne has their best interests at heart and he’ll try and obviously pick their best side.”