Suppressor design is going through a real renascence now. The science behind suppressors is not fully understood (modeling turbulence is a *****) and seemingly minor changes in the design can make a big difference in performance. We are still years away from being able to enter design criteria into a model based program and have an optimized design pop out.
From what I have seen the latest designs are better performers than designs from even 2 years ago.
I have a 2011 suppressor, and I will be having it re-cored in a couple of years to take advantage of newer design concepts.
One practical change I am seeing is using threadless tubes with monocores. This change eliminates the most likely cause of tube damage (thead damage). Since the tube is the part with the serial number on it and the only part that can't be replaced (without getting a new tax stamp) anything you can do to make that part last longer is a good thing.