This just in: the Hawaii Supreme Court has rendered a unanimous opinion in Leone v. County of Maui, No. SCAP-15-599 (Oct. 16, 2017), a case we've naturally been following because it involves regulatory takings (and we were involved in a similar case on a neighboring property).
We haven't had a chance to review the 48-page opinion in detail (once we do so, we will post a more detailed review), but the issue the court was presented with was, as we noted here, whether leaving land in its vacant state court be considered an economically beneficial use. Short story is that the court held yes, it could, thus seeming to create a lower court split (hello, cert petition) with at least one other court, the Federal Circuit in Lost Tree, concluding that economically beneficial use means more than someone might buy it down the road.
There's much more to the case than this issue alone, so we will have more once we've had a chance to digest it. Stay tuned.