Just edit your listing and up in the upper left corner is a link to the old listing page. When there just click the pattern square next to the etsy one and then hit publish. They haven't linked the new listing page to Pattern yet but they say they are going to be doing it.
From Etsy:
Since we announced that we’re retiring the old listing form on June 25, we’ve monitored and listened to your feedback, especially about the features that you would like to see on the new form.
We’ve passed this feedback onto our team and are happy to share that by June 25 you will be able to:
Add manual translations to your listing
Enable your listing to appear on your Pattern site
Edit a private, custom listing in the new form
See and edit all listing states (e.g., inactive or expired listings) in the new form
We are also exploring further improvements to navigation and shipping profiles.
Thank you again for taking the time to share your feedback, which is always a critical element in helping us make updates and improvements. You can submit any additional thoughts via our feedback survey.
