Elemental is looking better and better as a sub-spec for Resto. 11 points for PvE is a no-brainer because of the change on Elemental Focus, but 18 points in makes it very good for PvP too.
Sub-Elemental (18 points)
Elemental Warding
Elemental Focus
4/5 Reverberation
Eye of the Storm
Sub-Enhancement (9 points)
Ancenstral Knowledge
Imp. Shields
Imp. Guardian Totems
Imp. Ghost Wolf
The biggest reason not to go sub-Elemental in PvP, I think, is the total investment required. 18 points is pretty steep when the Resto tree is alread bloated with lots of talents that are useful in both PvE and PvP. It would be very tough to come up with an all-around build for both PvE and PvP with only 53 points in Resto, and Elemental is less appealing without EotS to avoid pushback on Hex.
I've been running with an Imp. GW build since it was implemented and I can honestly say that it is now the least compelling reason to go sub-Enhance. The escape rate is abysmal, and only slightly increases when you have Toughness, which requires an even deeper investment than Elemental. Ancestral Knowledge sucks compared to Elemental Focus in efficiency but doesn't require an offensive spell crit. The loss of Guardian Totems is somewhat alleviated by having Elemental Warding and Reverberation. Improved Shields, then, is now the biggest reason to sub-spec Enhancement, for the increased effects on Earth Shield and Water Shield, the former of which is, unfortunately, still dispel bait.
It's a bit of a toss-up, but I am still leaning towards a 0/12/59 build.
Edited, Aug 10th 2008 2:37pm by Gaudion