I'm looking for a way to publish from one main Wordpress blog in spintax (definition: http://umstrategies.com/what-is-spintax/) to different blogs, with the ability to use spintax on title, body, slug, meta fields and custom fields. I think this can be done in three ways.
On the main blog publish a RSS on spintax format with custom fields.
Then use Wordpress Automatic (or similar plugin) to import the feed when there is a new post and spin the spintax text, outputting a totally unique title, body, slug, meta fields and custom fields.
Use https://extensions.mainwp.com/product/mainwp-spinner/ and improve what it does, adding the ability to use spintax on slugs and custom fields, and the chance to select the category destination of the post (currently it only supports spintax on title and body text, and doesn't allow to select category, so all the posts are published as uncategorized)
Use http://www.wp-sbpm.com/ and improve what it does,...