I don't have a lot of exp. in administration of PDMLink, may be this functionality already exist) If it's right i delete this idea.
When user make a promotion request, reviewer recieve a task to review it. When reviewer have a lot of tasks he can't see which task he must to check in the first time, so, he can't plan his time. It will be great to choose the level of priority (for example green, yellow or red) when user make a promotion request.