[winkv]

creating quality content is not easy but you have a good start. I think you should adopt a publisher model, you already have captive audience in terms of paying customers for your niche. You can find out what else would be relevant to your customers and design a curriculum around it, no content, just the table of content for your next course. You might as well publish it to your website in coming soon section and give early bird discount(which would guarantee paying customer and fund the development of course.) if you don't get any customers don't go further in developing that course. Outsource the research on material for your TOC to virtual assistants, they will be responsible for curating and providing you the quality material. Once you have all these you can as well hire an intern with good communication skills who is interested in this course (say machine learning) but may not have the knowledge. Groom him and ask him to come up with writeup for your TOC. Hier high paid thought leader for this course as identified by your assistants while doing the research and let him be the editor for the content. RESIST any attempt to do it yourself if intern/assistants are not able to do it the way you want, just be patient. Rinse and repeat and send me 1M$ that you make from your next niche ;-)