But putting money into it is something that he may or may not have to do.

My point is that there is either a plan or vision for development.  People who become billionaires do so by a number of means, but one of them must not be putting good money after bad.  My optimistic side sees this as a sign that there is perceived value in keeping the building salvageable. And that roof will not come cheap.

Investors or developers looking at the building internally can make up their own minds whether the window dressing sends a thrill up their leg, but the fact it may be happening is only good.