New Magento Marketplace will be fully launched in early 2016.
It will be replacing Magento Connect.
Each extensions and providers in the marketplace will be reviewed by Magento. This review ensures that the right quality of products and services are offered by Magento Marketplace.
The extensions in the Magento app store will go through an automated basic check which will check for plagiarism, security including malware and viruses and Magento coding standards.
According to Magento Revenue Share model, 70% of the revenue will be distributed to providers and 30% to Magento itself.
The only drawback is that Magento users will see less extensions available than previously under Magento Connect.
The good thing is that there is no fee to submit apps.