Dynamic change of `CU_EXEC_AFFINITY_TYPE_SM_COUNT`support anytime in the future?

Generally speaking, NVIDIA employees don’t make forward-looking statements on topics like this, in these forums. There are various reasons for this. Yes, there are exceptions, but not typically for a question like this.

If you have a feature that you would like to see implemented in the future, the suggestion I have is to file a bug. If you use the word “enhancement” in your description, it will be clear you are not pointing out a defect but requesting a feature.