But it wouldnt end in oblivion. It would never end. Your chances for that being a continual nightmare are low though. A dream can change at any time. And it wouldnt matter anyways - it would go on forever, you wouldnt percieve it as a nightmare after a while, im sure of that. It would be your new reality.
At first when i read that a while back i thought about all the logical problems with that - you know, if we are staying in a materialistic mindset there, how could that even happen? There is no dream without a brain in materialism. But well...the whole thing could be just that time extends, just like you did propose in this very thread. It would extend to infinity. And if i speculate even further there...hell, i deem it to be possible that this theory states that time extends to a infinite value when your brain dies for everyone else. That would mean that time goes on just like now for everyone else - your time at that very moment of your dead though would be infinite. There wouldnt be any oblivion waiting; the moment of your dead (and propably that nde that you experience at that very moment) would be a infinite thing. It would never end. Could also be possible that time stops to exist at that very moment. No time, no problem. But that isnt something we can imagine.
Well and then the whole thing sounds like the "normal" afterlife from many other theories. You know, if this theory states that it is totally possible for time to extends itself so that a dream could go on forever, hell, i deem it just as possible that we could move on from that theory to something where the consciousness that percieves that dream could go to another place somewhere in another dimension that propably isnt even imaginable. But of course, thats all just speculation. But the whole natural afterlife theory is a bunch of speculations anyways. Had its fair share of criticism from all sides because of that too.