The correct tense of the verbs "will change" is future.
(Simple) Future Tense is used to refer to something that has not occurred yet. Furthermore, it is used to talk about an action that will begin but will also end in the future. (Simple) Future Tense is formed with the auxiliary verb "will" and the root form of a verb. The verb root is the same as the infinitive but without the "to". In this case, the root form of the verb "to change" is "change".