So this is our.. 4th effort at such a Rebellion 2. While I'm sure Igor and Eville Jedi can get a lot done, actually making this would require a dedicated team that will be hard to get. Making it open-source would help with some legal issues, but people will be expecting more information than a closed project. As to LucasArts, there is no interest in doing another RTS. They want developed games, as apparent from such as AOE engine, Battlefield 1942, etc. If pitched to them, they would shut it down.