Blizzard has added a new glyph for Druids in Wrath of the Lich King Classic Patch 3.4.2 PTR, Glyph of Omen of Clarity. The effect will be what the previous Feral Druid Changes were, but now requires Feral Druids to Glyph it, meaning there will be some trade-off to get the effect.
NEW Your Omen of Clarity talent has a 100% chance to be triggered by successfully casting Faerie Fire (Feral). Does not trigger on players or player-controlled pets.