Hi there! I'm simply presenting an idea so please try not to flame and bash me too hard.
Since we have no idea when WoD is coming out --and beta is STILL unknown-- I think we need to have something added to help keep interest in the game. Personally, I like that we'll be able to upgrade our gear in the next patch, but I think we need more. Just something else. Why not a world boss? I know we aren't getting a "Ruby Sanctum" type raid, as they would rather spend the time to develop WoD, but would adding a world boss really require that much from them?
Here's why I say this:
First of all, just give us a Sha. They already have the huge models for them, so there's that. We don't need new gear or items. So you don't even have to create new gear for this boss. Just copy and paste him and put him somewhere in the world.
BUT THEN, WHAT IS THE POINT OF THIS BOSS?!?!
Let's face it. It's the end of the expansion and we need some things to do. Since this is the "Sha of Greed" when he is defeated, he drops some valor (because he should) but you also get a cache. That cache will always have "x" amount of gold (A low drop rate of a really high amount of gold would be ideal, since "the greed" thing), and then 4-6 other items. Almost everything from MoP should be able to drop from that cache. Mounts and pets from world drops and other bosses including dinosaur eggs and dinosaur bones. No, I don't believe the white raptor should drop unless he has a very low drop rate. (Although, this idea I have ALL the world boss pets and mounts should have a very low drop rate). It would also have a ton of filler items such as gems, mats (enchanting, herbs, stone, etc), random MoP vanity items, etc etc ETC. Pandaren Phoenix mounts as well as challenge mode transmog gear should NOT drop from this cache. Basically, anything that is considered a world drop should drop from this cache. The point is to be able to have "another chance" at getting these items.
But wait, I have like 6 billion lesser elder charm things!!
So let's be able to use them now. How about when we defeat this Sha of Greed, we can use 500 of those coins to get another cache? Note: You would only be able to loot this boss once per week per toon and only buy 1 additional cache per week, per toon.
That's pretty much all I have. Sorry if it's not detailed that much but I think you all have the idea of what I'm going for.
Thanks for reading.