Yes, our future spherical Ultimate pano heads will support current lens rings. I may add a few more wide angle lenses to the supported lens list too. :-) It depends on our resources and cost effectiveness. We aim to keep the prices low so that more people can afford our products.
We listen. We try harder.
You do one heck of a job controlling costs. You are able to sell an arca style clamp for less than $50 complete. When I look at the engineering that goes into the clamp, I am amazed it can retail for such a low price. Your pole adapter has 5 tapped and 2 reamed holes. It sells for $10. I would ASSUME that a small block with 4 thru holes would not be that much. I think the convenience to the panographer would out weigh the cost. If not that many people swap out lenses/cameras, then this is a moot point.