FotoDiox has designed a clever Nikon AutoFocus Lens to Sony E-Mount Adapter. The adapter communicates with the Nikon lens so that you can make all your adjustments through the Sony camera menu and dials. To adjust the iris on the autofocus Nikon lens, a tiny motor inside of the adapter mechanically adjusts against the iris lever. The new FotoDiox Fusion Nikon G-Mount AF-I / AF-S to Sony E-Mount Lens Adapter is available now (found here).
Fotodiox FUSION Nikon G-Mount AF-I / AF-S to Sony E-Mount Full Auto