Comixology has accepted The End issues 4 & 5. These are all stand-alone stories. So, even though 2 & 3 are not up, doesn’t mean you have to wait; you can start reading the story of people dealing with the coming end of the world at any issue in the series!
You can find Issues 1, 4, & 5 are currently available for only $1.99:
The End – Madness (Issue #1)
The End – Hope (Issue #4)
The End – Survival (Issue #5)