What's interesting about this system is that it affects items that don't even drop in the Firelands, especially the difficult-to-upgrade relics like the Hardheart Relic that makes my shaman scream "Me want!" like a caveman. Since relics are usually a valor point purchase, this makes them difficult (if not impossible) to upgrade, in comparison to other items. In general, this whole system is currently only in place to upgrade 21 items, but with some of those items being weapons or armor pieces, we may see more soon. It makes me remember Sunmotes and the Sunwell Plateau's exchange system. Crystallized Firestone definitely seems like the next iteration.
Also new on the test realms: The Avengers of Hyjal have a new strength DPS trinket. Looks like new itemization is being implemented as we speak.
The news is already rolling out for the upcoming WoW Patch 4.2! Preview the new Firelands raid, marvel at the new legendary staff, and get the inside scoop on new quest hubs -- plus new Tier 12 armor!