Looks like the Weaponizer/Ultra class Optimus toy is being released in Japan in September (27th), with a Matrix.
But this is no ordinary Matrix... it transforms to form his sword, possibly inspired by the Matrix-sword of the First 13, Prima.

The toy also comes with a Micron, but it is just a redeco of Ratchet's Micron, which just becomes the pointy end of the Matrix-sword.

Priced at 8,400yen (about AU$105-110), this is a very expensive figure, even by Japan's standards. (US price of this mould is about AU$30, while ours is at AU$60... that's $50-70 just for the Matrix )

It was originally noted as having 5 Microns, so even if another 3 or 4 are included (that aren't shown there), that's still a huge price increase just for mini Microns.