It'sIt doesn't matter if EzEzekiel knew DeutDeuteronomy or not. He quotequotes the ancient prayprayer of when the life comea person comes to the end of their life, in order to explain the idea of his prophecy.
Actually we can say that this SHMA ISRAEL statement reveals the end of the world. Meanwhile one say it on his own life but Ez speak onEzekiel speaks of the end of everybodyeverybody's (every sinnersinner's) life - the end of the world.
When all people in the world would say SHMA ISRAEL it will be on that day when the world will end (and it doesn't matter what pneone actually wpuldwill say causebecause the world will endending).