In the context of personalized learning, we would like to see the possibility to create relative deadlines in modules. For example: student A finishes step 1 in the course module. Step 2 in the module consists of handing in an assigment. The student should get two weeks of time to finish this assignment. It's important though that the two weeks only start counting as soon as the student finishes step 1.
This means that the deadline for student A could be different from the deadline for student B, which turns this deadline into a personal or relative deadline.