First is something of a non-change for Shamans in particular: Blizzard had in mind to add a 30-second cooldown to Earth Shield, as well as a 50% mana-cost reduction, but now they're putting this change on hold until they can figure out exactly how they'll resolve the thorny issue of whether this spell should be dispellable or not -- it'll probably be in patch-2.4, in one form or another.
Secondly, there are some item changes in the works: one epic throwing weapon, the [Spinesever], is going to be nerfed a little bit for some reason, and a number of model certain Zul'Aman gear are going to be updated. The [Ancient Sin'dorei Longbow] from Zul'Jin himself struck me as a particularly sad reuse of an existing (and ugly) bow model. Fortunately, as you can see on the right, that bow is getting an invigorated look (on the top). A number of other items, are getting update too. Check out their post for all the details.