This stuff is looking to be REALLY good, I found a legendary the other day, and it was horrible, vendored it.
Can't wait for these changes.
It's a really good read if you sit through all of it.
On my end, the design end, to get the uniqueness into Legendary items, we've added custom effects to over 50 of them. Here are just a few.
He goes on to list a few of the new effects, this is a video of the Artists giving new/additional visual effects the items.
Comparison of the same item, before and after.