There is no reason for him to withhold specific information if he knows any.
My point was that for example Warner Bros could have insisted a different director be hired to replace Burton. They could have pushed that issue to get the movie going especially if they are financing it. Depp has worked with other directors so it is possible Depp would have gone along with the change.
Oh I was just trying to take WB's perspective on what they could have done to move this project along and this is one of the ideas I thought of. Unlike Disney, Warner Bros. is content to have this project remain in developmental hell. We really don't know if the script is coming along nicely do we?