I’ll offer my opinion, if I may, but keep in mind I am not a "good Christian" or JW. I believe there is no god more often them I believe there is one and that can change back and forth many times even in the same day. (but wouldn't it be nice)
Is the goal the beginning or the end?
no, I don't think it is anything more then the journey as they say.
Was our rebellion necessary like a mama bird kicking the babies out so they will learn to fly?
no rebellion, we are as we were made to be. the story is about gaining the knowledge of good (gods will) and evil (disobeying god's will)
Does God want us to be ambitious and intelligent?
ambitious in our quest to love all. intelligent people do not have an easier time loving, forgiving, caring... there is no value in intelligent that I can see, at least to the individual.
How could we ever be a threat when He knows all?
We are no threat to anyone but ourselves.
Does anyone know His real plans for us?
the Farther, the word, and the holy sperit, were talking, telling jokes and lafing...the word said to the farther " hay! do you want to see somthing REALY funny?"
just kidding he has no plans for us, that i know of. we are free to do what he can not, we are to grow, we can become more then we were. For me it is enough, be there a god or not.