You haven't given any information on what your program actually does, just some vague unsupported claims. This is borderline spam. -- For anyone that's reading this and looking for actual advice on learning French, here's my advice, having done something somewhat similar. I didn't know much French prior to living in Paris for 6 months (which was broken up into two 3 month periods over the course of a year) but a Fren…
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If the "fine-tuning" involves the technical implementation of your program or if you are still fine-tuning your business model and you have specific challenges or questions, this might be a good opportunity for you to ask for more directed input.
Most of us have been where you are with an idea, so there is some empathy. One suggestion rather than joining a wait list, why not implement a (link to a) beta program and invite us to take a look at what you have, warts and all. Those that take you up on it will provide invaluable insight.