We're meeting at 7.15.
We will go on holiday to the moon one day.
Your father and I are not going to support you forever.
I’m going to fail the exam.
I’ll see you at 7.15
The match starts at 7.30.
a decision made at the time of speaking
a prediction based on present evidence
a timetabled event
a prediction in general
a planned intention (decision already made)
a definite arrangement for the future