I don't think that there is any bronze anodizing. I think it's just the way that the video is taken. If you go to Arrma's website it is shown with all red anodizing, like normal.
I like the new bronze anodizing and it looks like they also may have some new type of spacer for the lower pillow ball and I could be wrong but the front steering knuckle looks aluminum but it could be the lighting.
Arrma should send a chassis to Mitch so he can start working one up. I have a feeling these longer chassis are going to bend easily.Studying the new parts, A-arms are way thicker than what we're used to seeing on the 6s vehicles. The chassis uses front and rear Talion braces, the Talion center driveshaft in the front and a new longer 157mm driveshaft in the rear for an additional 41mm of added length to the center of the chassis. The new chassis also has additional mounting holes to have the battery tray more towards the front or rear of the chassis