As I understand it, the issues are fundamental to the 14nm process — and one might expect once they can manufacture 14nm Broadwell parts with reasonable yields,

As I understand it, the issues are fundamental to the 14nm process — and one might expect once they can manufacture 14nm Broadwell parts with reasonable yields, they will be able to manufacture 14nm Skylake parts with reasonable yields. Last I heard the plan was for Broadwell to be available for something like six months only.