But, the one thing I always find interesting, philosophically, about believing the world-as-we-know-it is coming to an end is that all of the things people are concerned about will happen no matter what.
Being afraid of the end of the world is ultimately being afraid that we will lose the things we have, that our work will be lost to time and history, that ultimately we will return to a void and all of "this" will have been for nothing.
However, all of that is true either way. You will lose everything you've ever loved over time in life, all the work you've done will be lost to time, in the end all of your efforts will be for nothing and even that won't matter.
The "end of the world" scares people because it forces them to discard the normal tools they use combat these many existential anxieties, but the world continuing to go on doesn't actually resolve any of those anxieties.