But how I can made a splash? How I can convince people that my story is a good IP?
... what practically I can do? How I am alone can make a product of AAA quality?
There are no magic steps we can give you. How did J.K. Rowling become a multimillionaire based on her
original IP? Read her life story and see how long she worked at it, typing away in a little room while
raising a family, all the rejections and perseverance.
You can try pitching your concept to developers as you suggested above - there's no harm in trying. All
I was saying is that if you somehow (I can't tell you how) make your trilogy popular elsewhere, game
publishers and investors will come pounding on your door begging to make your game.