The Logitech MX1000 has a Tilt Wheel and it promises a longer battery life thanks to a lithium-ion battery. The status of this battery can be read out directly from the mouse. Just like the MX700 the MX1000 uses the FastRF technology to transfer data from the mouse to the cradle.
The mouse has about the same shape as the MX700, but a darker exterior.
The European advice price seems to be 79.99EUR, but some shops already list it for less 60EUR.
Source: Tweakers (Dutch), the site also has three pictures of the mouse.