This is said to have been leaked on The Yamaha US site shortly. It looks real. No sequencer, only 1.75 GB free waveform storage, only 128 polyphony for AWM2 alone ( but for stereo voices, so, as a well-informed user says, that would still be twice the old polyphony when using stereo samples). Maybe you have to scroll down the page.
http://www.musiker-board.de/threads/yamaha-montage.630868/page-5#post-7767097