I don’t really think this is that strange a question to ask. If Jimmy has read the Hobbit he would know Frodo doesn’t appear in it, it’s only natural to wonder who Elijah would be playing. I’ve wondered too, I’ve just assumed Frodo will be in some sort of flashforward.
It is a flash forward. Elijah actually explained this to Jimmy on the show right after this. Ian Holmes is coming back too as older Bilbo too. Jimmy probably already new this, everyone’s been talking about it.
