If you are referring to the designs with the weight screws, like the KE4 S, KE4 Tour+, TC Hybrids, and Fairways, etc. then yes we do have some new models with the same screw system. No new irons will have it for 2020, but the new TC Driver does, and the new M890 Drivers, Fairways and Hybrids will have an adjustable weight. We like the feature because it gives the club builder and the player a way to adjust weight in a clean way, without needing to use shaft tip weights, lead powder, etc. Those are still viable alternatives, but are not as convenient. When deciding whether or not to do it, we consider cost (it adds to the cost) and the design itself. We will try to incorporate the adjustable screw system in all our drivers, fairways and hybrids. With irons, it depends on the design and if we can incorporate adjustable weights into the design without compromising the dimensions, the look and the playability we are looking for, we will. Some designs are simply not conducive to doing the external weight system we currently have. It is possible that different size weights could be developed that would be more applicable to certain designs.
Good question. Hope this helps.