Are the Prophets of God, Idris (peace be upon him) and Yunus (peace be upon him), still alive in this world?

None of the scholars have stated that Prophet Yunus remained alive. As for the life of Idris, it has been narrated from some of the predecessors that he remained alive, but the preponderant view is otherwise. This is supported by the Almighty's saying: (And We did not grant to any human being before you immortality. So if you die, would they be immortal?) and His saying: (Every soul will taste death).