Really? I hated the way they did it in 05. The only way you could use it is at the beginning of your franchise. This is fine for teams that you're rebuilding or need new stadiums, but not so much for more establsihed teams, or teams with newer parks. I hated seeing so many empty seats in Fenway's replacement stadium while playing the Sox franchise.
I would hope if they add it, they would do it more like they did it for Madden. Where you can secure funds and get a new park down the road in your franchise OR right away, if your so inclined.