I'm actually not sure how I came to this, but I think The Day That Never Comes just popped out from my library and I skipped it and Dreamscape by EON came up and I thought to myself, "wait those introductions sound the same." I played them over and the beginning of The Day That Never Comes sounds similar to Dreamscape.

DreamScape by EON
The Day That Never Comes by Metallica

But it's probably just a coincidence. DreamScape was created before The Day That Never Comes. I doubt someone from Metallica decided to go to the NGAP to steal their next song's intro.

I just wanted to point out the interesting similarity.