What does Parzival’s dream foreshadow?

Before he left the tomb, Art3mis and Wade discussed what they would do with the money if they won it. Wade confided in Art3mis that he dreamed of building a ship on which he would place a sampling of humanity and “get out of Dodge”—abandon the dying earth. I suppose this foreshadows the ending. With his new power, Wade resurrected his friends. Art3mis stayed in the real world and told Wade to find her in Morrow’s garden when he was ready. In the garden, they met in person for the first time. Art3mis introduced herself with her real name, Samantha. They kissed, and Wade realized that for the first time in his life, he had no desire to log back into the OASIS.