I've had a colleague asking if it's possible for instructors to get a notification from Turnitin 24 hours before the post date. This isn't possible within Turnitin directly, nor is that exact option possible from within Blackboard. However, as it'd been requests, I'll share just in case others want to add to the request. 
[I know there are many, many things that are much higher up the list, but I've been asked]