TL;DR: Currently, we are working on our site to launch it on 21 July 2018 for selling Publisher theme and our plugins. Please notice Publisher and BetterStudio were not dead! we just removed from ThemeForest But we are working on Publisher and our products with more focus and power.
After 5 years of permanent and full-time working on creating high-quality themes and plugins including Publisher Theme that was the completely new level of magazine and news theme and selling it on ThemeForest and having 13,000+ customers, unfortunately, on 21 Jun 2018, the Envato decided to remove our products and our account with providing no clues.
Regarding this topic, we decided to set up our market and sell our products to our customers directly that enable us to create better products in selling them in the better way. We are working hard to release our market on 21 July 2018 or sooner. You can signup on the following newsletter to get notified on the launch of BetterStudio market.
For now, you can download the latest version of Publisher on our support community, and also contact us and ask your questions, we will serve you as soon as possible.