From what I’ve been told, they were given a sneak peak at a few items and were given an explanation about possible changes. Initial thoughts were positive, but they didn’t show or even explain everything they had planned, also even what they were shown was subject to change too.
All I know is there’s been at least a hundred or more posts about itemization suggestions on these boards since before and after launch. Knowing Blizzard though, they have their own ideas in place and won’t be changing anything until the patch is finally out and then they’ll tweak it as necessary. Their philosophy has typically been get it out first, hear the feedback, then make changes, possibly, maybe, sometime in the future.