So you focus all your attention on how much money the product may make and how you would split the money up amongst the team members and you haven’t got a product idea, story, programmers, artists, etc…? Would a revenue model not come later when you have a chance to, at the very least, review the final product? One potential scenario could be a beta/alpha release plan where the only stipulations are that the end users give honest feedback about the product. This information would become vital when pricing is determined. You could even go so far as to ask the alpha players to give feedback on how much they may be willing to pay for such a game – although I would not put much faith in the responses. These are the people that will ultimately become the ones that buy the product. All of the research should revolve around them and the information that they would provide.