What will happen to All-Time-Great Lists 100 years from now?

There's been a lot of great fighters in the last 100 years and there will be countless more in the next century. I know it's fun to make and debate ATG lists, but what do you think people living in 2109 will do when they make their Top 100 and they have twice the number of fighters to consider? Will some great fighters be left off lists simply because there's no room? Or will only the true best make it on people's lists? Will people in the future look down on our current best the same way we sometimes downplay the achievements of the old-timers? What do you think?