I think you are going to find most constituents to be very pleased to hear this news. The market wasn't ready, design teams weren't ready, spec writers and manufacturers weren't ready, and owners were definitely not ready to fork over the added soft costs for LEED project administrators to research new credit requirements and ascend the learning curve.

My main concern with the previous timeline for v4 was that commercial building owners would look at it and decide there was no way they were going to ever pursue it. I think if this delay ultimately leads to greater v4 market adoption then it is the right move.

Let's not forget that progressive owners can still pursue v4 if they wish. In Massachusetts the state school building authority mandated LEED v4 on all new projects moving forward, so there will be a few of us getting our hands dirty and advancing v4 in the interim.