I'm using this UI for quite some time now. Of course there are times when I feel the need to change it, but I always end up whit this layout. I fiddle a bit with the look of the unit frames, try out some new addons, might even replace some, but the basic layout somehow never changes. I use it on both of my chars (Disc Priest and Feral Druid) for healing, dps and tanking.
Yeah, it makes me sad as well. I guess I'll do my part to keep it going a bit longer.
I've never posted my interfaces on here because no matter how much I work on them, I never consider them "done." But here is what I have been using for a while, even though I'm constantly changing little details here and there. Pretty much all of my ideas have been shamelessly ripped off of this thread.