How would you classify an event that unexpectedly was to happen in a week or so within those 1,000 years that is the present time? That other event has to be classified as something and I don't think it would be right to say that the upcoming event was anything but the future time, which makes it seem like the future time exists within the present.
If, and I stress again on IF, one refers to present time as being 1,000 years, I agree with you beyond that is future time. But in this case, there is no future time between 1 and 999 years. There will be no future time in next hour, nor next week, nor next month, nor next year, nor next decade, nor next ten decades.... Does this make sense?
If you say it like that, wouldn't it be more rational to say that those 1,000 years are also the future, unless they come to be, which would make the even that occured before them a past time?
Of course, there is another IF, which is mine. The present time is overlapped with the future time. Therefore, there is future time both before and after 1,000 years.
How can there be future time before and after present time?
Let me correct myself here, I just gave the definition of the tense, which was not a statement. Furthermore, it was not completed, because I did not feel it was necessary, which would explain "...", I was previously refering to my post which should have read "an action within future time", it was a wrong sentence structure.
...verb that indicates the time, such as past, present, or future, as well as whether the action or state is continued or completed.
Tense specifies whether the verb refers to action in the past, present, or future...
No comment here, since I have lost track of whatever I was trying to explain.
Then I think your explanation allows that, in "John is a strange guy", John and 'guy' refer to different persons not that they are different.
Tomorrow, I am off on my vacation for three weeks, so no access to the net, - HOW WONDERFUL!
All the best!