navi said:
Thanks a lot to all of you.
Can't one use the simple tense if one is announcing a programme though, or giving an order:
A)You don't go out this week.
B)Today, we discuss Darwin's theory. (that's the programme)
C)I only eat vegetables this week.
D)He stays home and does his homework tonight.
I would say
A) You won't be going out this week.
B) Today, we discuss (or will be discussing) Darwin's theory.
C) I am going to eat only vegetables this week.
D) He will be staying home and doing his homework tonight.
To me, except for example B, the construction will + be + -ing or going + to be + -ing sound more natural in these contexts.
Actually, even in example B, the simple present tense carries a slightly different connotation.
-Today we discuss Darwin's theory. (That is on the program; I didn't necessarily choose that, but that's what we're going to be doing.)
-Today we will be discussing Darwin's theory. (Neutral; either I chose that or that's just what's on the program.)
In the other examples it seems more likely that the speaker is making these decisions, and that's why I would go with the future progressive form.