A good technical plan can go a long way in helping you attract developers and acquire funding. The following plan was a part of the development package for the game Genesis Seed that was submitted to Activision for their 2011 Independent Games Competition. The project was cancelled but we still have a lot of useful information and resources from it.
Note: The numbers in the work breakdown are not to create a game from scratch. This technical proposal gives details on how to finish the project.
Leave a comment if you would like more information.