sakisbal

This plugin is not of any use for general themes but is specifically created for 
my main theme perfectPortfolio.

perfectPortfolioHelper

The plugin is not for general use, but its a helper plugin for my main theme

dropwp

Once activated, this plugin will override all product status changes and set them to DRAFT. This way you could have a bulk importer and only publish your products once you have already revised and updated them.
To override this status change, simply add a custom_meta to the product with name ‘dropwp_disableproducts_skip’ and value ‘1’.

Dropwp Disable Products

Plugin to create all WooCommerce producst on DRAFT status until a custom_meta is added.

perfectPortfolioHelper vs Dropwp Disable Products