On the one hand, I really want to believe that this will go a lot like when Nike got the NFL contract a few years ago. People freaked out that Nike was going to bring their wacky collegiate designs to the pros. Instead they came out with designs that were mostly par for the course: traditional franchises looked like they were supposed to, while the Seahawks debuted a relatively subdued redesign that was coming anyway.
On the other, the NFL has a bit more clout than the NHL, and the NHL has not exactly been known for restraint in on-ice branding over the last 20-25 years. I don't recall seeing any wording like this article around the NFL deal, or Nike's upcoming NBA deal. It reads as if adidas is going to treat this a lot like their MLS deal, and that's not something I want to see. Here's hoping they at least spare the Original Six.