Subject + WILL + BE + Verb (continuous form)
We mainly use the Future Continuous to indicate that we will be in the middle of doing something in a specified time in the future. There are also two other uses, listed below:
1. Future actions in progress
2. Guesses about the present or the future
3. Polite questions about somebody's intention
Use 1: Future actions in progress
The first use of the Future Continuous is to express future action in progress.
In an hour, I will be sitting in front of my TV.
In the evening, I will be baking a birthday cake.
Use 2: Guesses
Use this tense also to make guesses about something in the present or future.
He won't be coming any time soon. He is still at the office.
Beatrice will be getting married very soon.
Use 3: Questions
And the last use of the tense is to make polite questions about something or somebody.
Will you be coming home before or after 10 PM?
Will you be going to the supermarket? I have something to buy.