According to the Devs, they see all the bug reports, and frown upon bumping threads. See: How to Write a Good Bug Report.
We read every single thread that is posted on this forum. However, we will not always respond to every thread. If you do not get a blue response, please DO NOT bump posts. We will ignore and possibly delete any post that simply says “Bump” or demands a response from a Blizzard poster.
I personally frown upon Blizzards M.O. of silence in handing bugs in this forum, and think they are turning their own players against themselves.
If I had to guess, they are working on it, and since the next patch is a few weeks away, and that not that many people are playing right now, they are just putting it off until the full patch is ready.
I think that is a terrible idea, but I would guess that is what they are doing.