Finished the Deep Learning Specialization, now what?

So I just finished the DL Specialization. What’s next? I am planning on doing the ML Course again since its in Python this time!

Also since I completed everything for this specialization, do I need to cancel the subscription or will it stop on its own?

You could choose your track such as Natural Language Processing (NLP) or Computer Vision (CV).
It will stop on its own if you have completed everything related to the specialization.