1. Future Progressive Tense is used to talk about action which will be in progress at a time in the future :
Example:
At this time tomorrow, I shall be playing my guitar
When I get home, mother will be cooking
2. To express an action in the future which are already planned or which are expected to happen in
the normal course of time.
Example:
I will be staying here till Sunday
He will be meeting us next week
The postman will be coming soon