The future continuous tense talks about an action that either:
(a) will be in progress in the future and interrupted by a shorter activity (‘I will be waiting for you when you arrive’)
(b) will be in progress at a specific time in the future (‘At 7 p.m. I will be eating dinner)
NOTE: for the second use compare the future continuous with the future simple:
| Future continuous | Future simple |
| At 7 p.m., I will be eating dinner. | At 7 p.m., I will eat dinner. |
| The speaker started to eat before 7 p.m. and won’t finish until after 7 p.m. | This focuses specifically on when the speaker will start to eat dinner. |
The structure of the future continuous is relatively simple: will + be + verb + ing
| – | will | be | [verb] | +ing | – |
| He | will | be | work | ing | late tonight. |
NOTE:
The future continuous can also be expressed using ‘be going to be + ing’ instead of ‘will be +ing’ with no difference in meaning.
I will be working at home this afternoon. 
I am going to be working at home this afternoon.