If you update an auto-enrollment rule on a course, and the system detects that there are no new enrollments to be generated, when you click on "publish", it will state the total number of enrollments that it sees (it will say “based on the automatic enrollment rules, # users will be enrolled”). It uses the future-tense phrasing "will be enrolled" which is misleading, as it seems that it is saying these are NEW enrollments (even if there are no new enrollments). It would be better to have it say "Are currently enrolled" and "no new enrollments will be created" for added clarity.