Yoast is all set to add Live Indexing with Bing and Google. It was announced at YoastCon that Yoast SEO is all set to provide live indexing with the help of both Google and Bing which would be starting from next month. Read more at seroundtable.com
As of Bing is concerned they would be working with their new submit URL API. About Google the details are not entirely determined as yet. There are chances that a Google Search Account might be required.
The Indexing API is likely to be highly restricted to specific types of content.