Board Thread:Warhammer 40k General Discussion/@comment-24821739-20140604204305/@comment-24821739-20140605134514

Well, when the Emperor finally bites it, there won't be any interstellar travel, as he is the only reference point for the Navis Nobilite. When Empy dies the Imperium will be utterly disconnected, due to the Astronomican ceasing to exist/function. Even with a Primark back, there still would be no way to safely travel the Warp. (Except for "Warp Dives" and that would take a lot more time.)

The Imperium did not "Fall" during the Age of Strife. It fragmented.

One thing you can always count on, and this is seen in almost any universe with multiple forms of life, is human-kind's adaptability. The Imperium might break and shatter, but Humankind would persist.

I also read on the Astronomican page that it is attracting the Tyranids to the Milky Way Galaxy, so that would be another benefit of letting the Emperor die. (Even though the Imperium does not know this.)

@SanguiniousLives - Do you have a source for this? If so, I would love to read that.