On the negative side, what I never understood is why people ask questions to other people that don't have the pay grade to answer. (all within the parameters of my signature). Within those parameters, it is God who will ultimately decide.
On the positive side, the question of "will atheists and theist have the same fate as each other" is a very good question when one is asking for their own understanding. Within the parameters that I stated, one can read the NT to see what is the perspective of those who wrote those Gospels and letters and come to their personal conclusion to the degree that they believe what is written or what sounds logical to the reader.
Certainly Jesus intimated as such when he said:
Matthew 9:12 On hearing this, Jesus said, “It is not the healthy who need a doctor, but the sick.
If one believes they are healthy (I am perfectly fine--I am happy where I am at), they will believe one thing and act accordingly. If one believes they are sick (I am not perfectly fine, I am not happy were I am at) , they will have their set of action items.
So the fact that one is asking oneself the question is a good position is as much as they are judging themselves, looking for some sort of standard, and finding whether they are healthy or perchance the find that they had a hidden cancer that was going to kill them and that they need a dictor. (analogy)