The only one that would know that is the developer. Currently ACF uses the options table to store meta values for terms. I’m sure that eventually it will be updated to use the new term meta features of WP. I agree it would be nice to have but I’m personally not going to count on it being there when the features are released in WP, although this could be one of the things that’s keeping the developer busy, you never know. This question has been asked before when WP first announced that they would be adding term meta. The best that I can do is mark this topic for the developer to look at if he has time to.
