I haven't seen it before but it is not a new version of the blaster. They purchased 25 from Tomenosuke that they are going to have painted to match the blaster from the original movie. As much as I like this you just know it is going to cost a lot more than a standard Tomenosuke what with the special finish and who knows when it will be available/delivered.
From what I can gather from what EFX posted I don't think they have done anything other than to examine the original and make a paint master so any pictures most likely have nothing to do with the final product.