Timeline for Front End Directory Listing please?

Hi I run a free Directory of local services on one of my sites using the standard post format and an alternative review plugin. But I would like to start charging for this service with ideally the ability for users to upload the listing themselves from the front end.

I have Gravity forms which could probably achieve this with some work but was looking for something more structured.....

Can you let me know if you have the timeline to get this feature added?