There has been  no official public announcement of this lens from Nikon, but it has appeared on Nikon Europe websites.

Nikon advertises this lens as:

” High-powered DX-format zoom lens with wide-angle to super-telephoto reach. Build to handle diverse situations, this all-round lens offers an ultra-high 16.7 zoom ratio with an incredibly wide 18-300mm focal range. “

Here are the main features of the lens:

• DX format 16.7x zoom lens with versatile 18-300mm focal range (FX/35mm equivalent:27 to 450mm)
• Vibration Reduction II (VR II) stabilization system enables more flexible hand-held shooting and lets you use shutter speeds that are up to 4 stops slower.
• Maximum aperture of f/5.6 at the telephoto end of the range.
• Zoom-lock switch keeps the lens secure when not in use.
• 9-blade rounded diaphragm opening makes out-of-focus elements blend together smoothly.
• Three ED glass and three aspherical lens elements ensure high resolution and superior contrast.
• SWM (Silent Wave Motor) for fast, whisper-quiet autofocus.
• Compact and lightweight design for a lens with this range.

 

No official confirmation from Nikon, yet.