Site sponsor, BigBadToyStore, have posted a new product listing for MP-10 with the following description:

We've just received the initial information from Japan regarding the long awaited MP-10 Masterpiece figure. No image or name was released yet, but we do have pricing and release information. The information states this is a 'New' figure, so we do not expect any repaints of prior releases. Stay tuned for images and further information, we will update the listing as we receive info.­

­This was followed up by ­TFW2005 board member Sidecutter posting "We have received from Takara the information about the next Transformers Master Piece. They called it in Japanese New but the offer specify that the name maybe change in the future.  There are 2 pcs per case. Retail of YEN22,000 in japan. Delivery in September 2011." They also posted the following placeholder image from the Takara product cata­logue which reads as "Transformer New".

No other information is available at this time, though it is quite possible that this could turn out to just be some Transformers Dark of the Moon figures re-brand.