Ask HN: Are you developing/using a multi-year Middle/High School CS Curriculum?

The charter school network where I teach is interested in implementing a multi-year computer programming curriculum starting in 7th grade.

I have tried many of the resources out there: Codecademy, Khan Academy, Code.Org, Scratch, Tynker, Hopscotch, and others. All of them have many positives (and are great for electives/clubs), but none of them is a true multi-year plan that can be used in a classroom by a teacher (similar to what exists for math, like http://www.engageny.org/resource/grade-5-mathematics).

Are you working on building something like this? Have you seen or tried anything like this? I am curious to hear all suggestions and ideas that are out there. (If anyone is interested in discussing this further, please feel free to email me.)