So many questions remain unanswered about a new Kansas City Royals stadium at Washington Square Park, that, at this point, the proposed $1.9 billion project — while more now than just a “Field of Dreams” — is still a “Field of Speculation.” Who will pay for it? It’s unclear. On Thursday, the Kansas City Council approved an ordinance authorizing City Manager Mario Vasquez to negotiate with the Royals a deal of up to $600 million, a major step towards securing a new stadium. But how much money the Royals, controlled by billionaire owner John Sherman, will pitch in is still an open question, because Sherman and the Royals have yet to announce it. What monies the state of Missouri and Jackson County might contribute, if the county contributes any, is also unclear. As for what the ballpark will look like: no official renderings have been released. In fact, so much is currently left to speculation — where home plate will be, the outfield, the entertainment district à la Chicago’s Wrigley...