Final answer:
Prospero plans to end his life back in Milan, where he intends to return after leaving the island and renouncing his magic in Shakespeare's 'The Tempest'.
Step-by-step explanation:
In William Shakespeare's The Tempest, Prospero plans to end his life back in Milan. After orchestrating the complex events on the island to bring about reconciliation and justice, Prospero decides to leave the island, renounce his magic, and return to Milan where he will end his days. This is mentioned towards the end of the play when Prospero declares his intention to return to Italy and resume his position as the Duke of Milan.
While the question references a play titled Isle of Noises as a prequel to The Tempest, it's important to focus on the canonical text by Shakespeare when answering questions related to Prospero's fate. Prospero's story is deeply entwined with themes such as the transfer of power, revenge, and redemption, which are also reflected in the given prequel.