Verbs simple aspect Continuous(progressive) aspect Perfect and Perfect Continuous aspect

The flight leaves at 6 o'clock in the morning.
You spend the first night of the trip in a hotel in London.
Future Continuous
FORM
will be + present participle: I’ll be coming, etc.
USE

• 
  To describe an activity that will be in progress at a point in the future:
  

This time tomorrow we’ll be sitting on the plane.

• 
  To describe an activity that will cover the whole of a future time period:
  

I’ll be working in the office all evening.

• 
  To describe a future event without expressing deliberate intention:
  

Sue: Oh dear, I haven’t given Ben that book back.
Joe: That’s all right. I’U be seeing him at the music club tonight so I’ll give it to him for you.
Here, the activity of seeing Ben is not an express intention but will happen when Joe goes to the music club.
I’ll be revising for my exams this weekend so I think I’ll stay in on Saturday night.
The intention expressed here is to stay in on Saturday night. The plan to revise is relevant to this decision.

• 
  To describe what we assume someone else is doing at this moment:
  

Don’t phone her now. It’s 4 o’clock and she’ll be collecting the children from school.
Note: The future continuous is not used with verbs that do not normally take the continuous form.