Future Continuous: Actions in Progress in the Future

Future Continuous: an action in progress at a point in the future.

Form: will be + -ing.

• This time tomorrow I will be flying to Rome.
• Don't call at 8. I'll be working.
• Will you be using the car tonight? — a polite question about a plan

Compare: I'll work tomorrow (decision / fact) vs I'll be working at 3 (in progress at that time).