When I spoke to Steve at Computex in June, he indicated that the models on show were simply the aluminum version done in copper. In order to prepare the heatsinks for production in copper, they have to go through the entire engineering process a second time. Going through this process right now, I can tell you the optimization of a heatsink is incredibly time and resource intensive. You need to account for fin spacing, optimal base to fin and pipe to fin contact area, fan specification, contact area, airflow (or lack thereof) surrounding the heatsink, etc. Once you've run a multitude of simulations (we've been running simulations for at least six weeks) you actually have to go to prototyping and then production. With this in mind, I'd be floored if we see the heatsinks in 2017.