The future is used to indicate that something is going to happen in the (near) future.
The present simple future is used for future events that follow a schedule
Example: Exam week starts next Monday.
Will/ Shall + infinitive = predictions, offers, promises. (Shall is mostly used in questions mostly with I/We)
Example: Shall I make you some tea? / I will become a singer.
The present continious future is for plans for which arrangements have already been made.
Example: We are meeting up next week.