I feel that Prospero's plan from the beginning was to bring the people who caused him to be on the island and took away his dukedom to the island. I feel that his plan did not change from the beginning of the play. Two of the reasons as to why I think this way are: he never caused harm to the people who wronged him and that his daughter listened to him when he told her to wait to get involved with Ferdinand. The way I interpreted this play lead me to believe that Prospero's play was to not harm the people who wronged him because he had them placed on the island safely and never harmed them while they were on the island. I also feel that the fact that his daughter listened to him while getting involved with Ferdinand just showed that all pieces of his plan stayed in place.
I feel that these plans had great affect on the other characters in the play. I feel that the plans show this with how Prospero manipulates Ariel by the promise of freedom. I also feel that these plans affect Caliban greatly as Prospero constantly remind him that he owes him service for teaching he had received.
In conclusion I feel that Prospero used his plans to achieve exactly what he wanted to happen and I also feel that these plans really affected all the characters in the play, but I feel that the plans affected Ariel and Caliban the greatest.