Hi again, Paco,
It's no bother at all to me. On the contrary, it's interesting.
I'm a bit confused with your answer that <will be doing> is a wordy version of <will do>.
When I reread what I wrote, it doesn't seem to me that I gave that answer. I thought I identified some differences. Perhaps I didn't express myself well enough.
I just got off the phone with Mario. He is sick!! He has had a sore throat for the last 4 days, and now he has a cold on top of that. And he is struggling getting back into the swing of things at work. It's always hard for me after a long vacation. But he will manage. I won't be seeing him tonight. I have my project to finish and gym night. I will see him tomorrow. Hopefully he will feel better.
I won't be seeing him tonight
You say 'she is saying "<my not-seeing him tonight> is an outcome of my already-fixed schedule". Yes, that's a possible interpretation, but not 100%, maybe she is deciding as she speaks. To me, the continuous also stresses that the 'not seeing' is going to last all evening. Also, it reinforces closeness in the future. We wouldn't commonly say 'I won't be seeing him in 2009.
I will see him tomorrow
You say 'This seems to me as "I will put <seeing him> into my tomorrow's schedule"'. Well, it expresses a strong decision. It may also be that I will see him for a short time. If you want to think about this schedule aspect, don't forget to consider future plans with 'going to'. If she is putting it into her schedule, how about 'I'm going to see him tomorrow'?
You also wrote to Roro, so permit me to comment a bit..
a distinctive feature of <will be doing> is that it is used to clarify that the stated future event is independent from both speaker's judgment (epistemic mood) and subject's volition.
Well, it can be used this way, I agree. But how about
Can you give Tom this tomorrow for me? Oh, wait a minute, he will be on the same bus as me tomorrow, so I will be seeing him. Is this independent of my judgment? Another way to look at this is to say that it expresses a logical deduction, which is a use of judgment.
If some person says "I will see him tomorrow", one can take the sense both ways depending on the context; "I have an intention to see him tomorrow" and "It is fixed for me to see him".
I agree. It just really states the fact that I will see him. As I said, it's a strong statement.
The construct of <will be doing> can avoid this kind of ambiguity. "I will be seeing him tomorrow" always means "It is fixed for me to see him tomorrow".
Do you mean it's the same as 'I'm going to see him tomorrow'?
Best wishes, Clive