Apple Podcasts has confirmed delays with regards to having content appear in the Apple Podcasts store. It is important to note that while episodes may not appear in the Apple Podcasts store, content is still available to subscribers.
The Apple Podcasts team is working on a solution and once a solution is pushed out, the store should update normally.
UPDATE 3/4/2016: We have heard from the Apple Podcasts team that they believe this issue is rectified. If you believe you are still being delayed longer than the standard 24 hours, please reach out to theApple Podcasts support team or to [email protected]