That was quite a speech. I do agree with you however. I often see donors being treated like you said in and around the arena, it's apalling really.
We always said we would make the VIP experience a lot better, but only kept saying that and never actually did a thing about it. I'm sorry now that we have not acted sooner.
As of the next maintenance (no ETA as of yet) the Azshara Crater will be closed off to non-donors. That's right, only donors can access the map. This map, being so large, can serve all the VIP extra content. Multiple HARD dungeons (not instanced, but meh), special items/vendors, donor arena, you name it! It will be the VIP haven, that all donors can enjoy and not worry about being raged at by other players.
As you can imagine, development of such a large project will take time and change along the way. Donors (and players considering donation) are free to make their suggestions about content in this project. As usual, we beg of you to keep the suggestions very reasonable. An example of a good suggestion:
"A little VIP duel area/platform, for dueling only. and maybe a couple of seats around it for people to watch"
And a bad one:
"I want there to be 8 large arenas in this map. Oh and give us free illidari marks!"
We hope it becomes a nice donor addition upon it's eventual arrival.