(Predictions when you are unsure about the result).
timetables
For Intentions in the long term
For offers, when the speaker is included too) (question)
To express that an arrangement is going to take place throught a space of time.
For suggestions, when the speaker is included. (question)
For promisses.
Offers (always with statements)
To express that we will be in the middle of doing something in a specified time in the future.
after expressions time expressions like when, until, before, afer, as soon as
For decidions made at the moment of speaking
For predictions based on what is happening right now.