I think your venture is quite interesting. Certainly language is a critical area that needs innovative and adaptable support. I think your goal to have hands-on activities and role playing scenarios is a good one. I do not know much about this area of education and I am basically going on the information you have provided me with here. By and large I would tend to invest in venture where I have some background knowledge so that I would feel comfortable and well informed. Good luck with your venture.