The AGM is not new light. They are just saying that we can't be dogmatic about specifics. The children at the flood or Sodom, or other times.
In the past it was said that they all are doomed, then later they said, let's not bury them so deep.
Now they are saying, Jehovah is more merciful to those who deserve mercy.
And Tonus is right. It is not important all to know or figure out who gets resurrected from those past times.
It's like looking to the Bible characters to be resurrected, what do we expect to learn from them? Will they have more memories brought back then from the day they died? Will they simply say they don't remember? If Daniel died at 100 years old, will he have memories of when he left for Babylon? Or will they all tell us that everything that was recorded about them is wrong?