Jo isn't gonna say "oh, the park is amazing, I have complete faith in you, do whatever you want" she will look over EVERY PLAN and fix it so its to her liking. Remember, if Jo says no, nothing happens.It doesn't matter what Uni has done. And she is not in it for business or money. SHE IS A BILLIONAIRE!!!! She donated ALL THE MONEY from Quidditch through the ages, fantastic
beasts, and Beedle the Bar to CHARITY. She could care less about the money made from the park, what she cares about is truth to the story and a good park, worthy of her books. So it doesn't matter what Uni decides to do, unless Jo approves, nothings gonna happen. And if she does approve, that means it's really good and I will look forward to it.