Yea, I think a little season is a relatively short time also. So why would those who ask the question in Revelation 6:10 be told to wait a little season when they died prior to the writing of Revelation? Are you saying they died 2,000 or more years ago and they still haven’t asked the question yet? Shouldn’t they be able to read the Bible in heaven and see that they need to ask the question?
After all this time I finally grasp where you are coming from and why. Better late than never, I guess. Let's try and figure some things out here here then, based on the text itself.
Revelation 6:9 And when he had opened the fifth seal, I saw under the altar the souls of them that were slain for the word of God, and for the testimony which they held:
10 And they cried with a loud voice, saying, How long, O Lord, holy and true, dost thou not judge and avenge our blood on them that dwell on the earth?
11 And white robes were given unto every one of them; and it was said unto them, that they should rest yet for a little season, until their fellowservants also and their brethren, that should be killed as they were, should be fulfilled.
12 And I beheld when he had opened the sixth seal, and, lo, there was a great earthquake; and the sun became black as sackcloth of hair, and the moon became as blood;
13 And the stars of heaven fell unto the earth, even as a fig tree casteth her untimely figs, when she is shaken of a mighty wind.
14 And the heaven departed as a scroll when it is rolled together; and every mountain and island were moved out of their places.
15 And the kings of the earth, and the great men, and the rich men, and the chief captains, and the mighty men, and every bondman, and every free man, hid themselves in the dens and in the rocks of the mountains;
16 And said to the mountains and rocks, Fall on us, and hide us from the face of him that sitteth on the throne, and from the wrath of the Lamb:
17 For the great day of his wrath is come; and who shall be able to stand?
The first thing that seems obviously apparent is this. Persecution of His saints precede God's vengeance on those persecuting His saints.
Which then brings up something else to factor in here. If some of those that have been persecuting His saints are already dead when the events involving the 6th seal begin to take place, how are the 6th seal events relevent to them, meaning dead ppl?
Obviously then, this little season that they should rest until their fellowservants also and their brethren, that should be killed as they were, should be fulfilled, this can't be spanning hundreds or thousand of years, but has to be spanning an era of time when their fellowservants also and their brethren, that should be killed as they were, are being killed. Otherwise you end up with nonsense per the 6th seal since that wrath is involving those that are persecuting His saints during this little season in question. Therefore, this little season is still future since the 6th seal events are still future and that this wrath per the 6th seal is being poured out on those that have been persecuting their brethren during this little season in question.
Of course though, you mainly leaning towards Preterism, you likely disagree that the 6th seal events are still future. Clearly, whatever and however verse 15 and 16 above needs to be understood, nothing in the past remotely explains any of that. If trying to apply that to literal events such as 70 AD, means one then needs to apply verse 15 and 16 in the literal sense, since the events pertaining to 70 AD involved literal events. Except no one was doing that at the time what verse 15 and 16 records they will be doing. Therefore, it makes zero sense to apply the 6th seal events to events such as 70 AD when verse 15 and 16 can't fit a literal event such as 70 AD nor leading up to it.