They aren't changing the design per se, apart from going to the one-tooth master link that was done a couple of years ago (for reliability reasons) and discussed here on HEF, they are coming out with more offerings as regards track links for the high-hour end of the market. For machines that work 24/7/365 a new link will be available. The new link has more "meat" on it in the wear areas and is hardened deeper to give more wear material before link groups need to be replaced due to wear. I'm sure it will be more expensive to buy but most likely have reduced cost/hr. I wouldn't have thought that would affect the aftermarket industry much because they usually don't get a look in with the type of corporate operators that run these machines, those guys are already on OEM undercarriage for the most part and those that aren't really should be......