That, "ultimate collector's edition", that was talked about before was revealed today, or at least shown briefly.
It was listed on Amazon earlier, but has since been pulled for obvious reasons as it on there before the E3 demo/trailer had been shown so assume it will be back up soon.
Anyways, you can see the article about the listing here and what the N7 Edition includes or might include, as there hasn't been direct confirmation from BioWare themselves about it. It's most definitely legit, but always gotta be wary of anything new as things change.
From that listing it says it includes the following:
- Premium metal case featuring commemorative artwork of Commander Shepard.
- 70-page hardbound art book featuring hundreds of unique and gorgeous illustrations from the BioWare development team plus an exclusive 4×6 lithographic print featuring a one-of-a-kind piece of artwork.
- Limited edition Mass Effect comic by Dark Horse Comics, complete with unique cover artwork.
- Join the ranks of the N7 with the premium fabric N7 patch.
- A full collection of in-game content that can’t be found anywhere else.
Listed for $79.99.
Here's a pic that shows the N7 Edition featured on the new Origins EA site.