I personally think that a game is original based upon its playable content, and what game features it offers, not by what scripts it has, or how the leveling system works, especially if the leveling system has been used before, just not exactly in that type of game, but its her opinion and thoughts that count there, not mine.
Back on topic now.....
I have started mapping stuff using rpgmaker maps, I'm not quite sure if we are going to create entierly new pallets with Starcraft terrain or if we are going to use rpgmaker pallets, or a mixture of both, but either way its good to have concepts down at least.
I am having trouble with sprites right now though, because im not the best spriter for this, and the sprites for starcraft i did find are rather difficult to work with because of their size. I am thinking that it may be best to just make the sprites all over again from scratch at this point. Buildings would be fairly easy to rip though because they only have 1 image for each one of each color, and color is easy to redo, so those will not need redoing.
You dont have to actually join the project to contribute something, (though if you do you will of course get credit for what you did.) So feel free to step in and lend a hand.