Similar to the dynamic start date request, having an ability to exempt users from a particular module that they have already completed in the last x amount of months would be wonderful. For example, we create an annual training assignment, Joe starts in November, completes the backlog of training, but on January he's assigned everything all over again. While helpful for Pete, who's been here for 15 years and needs to be frequently reminded to not put his passwords on sticky notes, it could be frustrating for Joe to "get in sync" with the rest of the org.