I hope the SMT hardfork will be just that, only about the SMT's. Piling on of more and more "aside, nice to have", things would not be a good idea. Keep it simple, keep it about the SMT's when it is time.

Take note of how long the witnesses have had HF21, (over a month now), and note how much progress has been made on an adopt or not choice. To many divergent things to test, so for SMT hardfork Keep it simple and only about SMT's