Learning Tenses - Step Seven - Future Continuous

• This describes an event which will be happening at a future point (Come round in the morning, I'll be painting in the kitchen)
• It can also describe events which are going to happen anyway, rather than events which we choose to make happen. (I won't bother to fix a time to see you, because I'll be calling into the office anyway several times next week.)
• In some contexts future continuous also sounds more polite than "will" (Will you be going to the shops later? If you go, could you get me some milk?)
• It can also be used to refer to fixed arrangements and plans ( The band will be performing live in Paris this summer)

http://www.englishpage.com/verbpage/futurecontinuous.html