Possible wotlk changesFollow

I haven't looked at the other new talents in Balance in about a week, but I seem to remember one that adds part or all of your +healing to your +damage. If that's the case, Lunar Guidance is probably being balanced against this other talent. If not, I wouldn't worry too much. WotLK is still in Alpha testing, there's a lot of talent tweaking still to go.

Druid

* Entangling Roots can now be used indoors as well.
* Base damage of Maul, Rake and Ravage has been increased.
* Demoralizing Roar now removes more attack power than before.
* Soothe Animal is now instant cast.
* Tiger's Fury no longer costs energy, but now has a 30 second cooldown.
* Hurricane cooldown has been removed.
* Frenzied Regeneration now only has one rank. Frenzied Regeneration will now restore 0.1% of your max health per rage instead.
* Ferocious Bite's damage for extra energy now scales with attack power.
* Nature's Grasp can now be used indoors as well.
* Nature's Reach now reduces threat generated by your Balance spells by 15/30% in addition to it's old effect.
* Brambles now gives your Thorns and Treants a 5/10/15% chance to daze the target for 3 seconds when dealing damage in addition to it's old effect.
* Omen of Clarity is now a passive effect instead of a self-cast buff.
* Feral Charge is now available in Cat Form as well.
* Improved Mark of the Wild has been reduced to a 2 point talent, increasing the effect of Mark of the Wild by 20/40%.
* Nature's Focus has been reduced to a 3 point talent, now reducing chance to be interrupted by 23/46/70%.
* Subtlety has been reduced to a three point talent, now reducing threat and reducing the chance your spells will be dispelled by 10/20/30%
* Improved Tranquility now reduces the cooldown of your Tranquility spell by 25/50% in addition to it's old effect.
* Improved Faerie Fire works for spells too now.
* Survival of the Fittest's effect has been doubled.
* Tree of Life can cast the new Flourish spell. Old extra healing aura has been removed and replaced with Bark's Blessing, which increases healing done on target's of your healing spells by 25% of your spirit for 8 seconds.
* Mangle (Bear) now increases the damage of your Maul ability instead of the Shred ability.