Yes, he dies. This is inferred by the reader. Because of the conectedness he has between himself and the fish such as them both being in their own struggle, it symbolizes something. The fish dies after his great stuggle against the old man. Due to the conectedness, the old man also dies after his great struggle against the marlin and the sharks: nature. One event that forshadows his death is that he "spat out something strage" in the end of the book. This meaning he spat blood...
No he is just sleeping or dreaming of the lions
Tiresias predicts that Odysseus will die an old man at sea.
Santiago does not die at the end of the story.
Santiago Stevenson died in 2007.
Santiago Pampillón died in 1966.
Santiago Armada died in 1995.
Santiago Bonavía died in 1760.
Santiago Vidaurri died in 1867.
Santiago Artigas died in 1931.
Santiago Gallo died in 1909.
Francisco Santiago died in 1947.
Santiago Rusiñol died in 1931.