I will buy everything from TWOK they release, as it's my favourite Trek movie of them all. That Expedition jacket looks awesome, although the colours look incorrect. The main colour is a Rust brown and the lining is in light tan. Only the rank band on the sleeve and the shoulder patch is actually white. I made one of these a few years back, and studied reference material extensively.
In the screenshot above, Terrell's shirt is white and his jacket red. Compare the colours to Bones' coat, which looks more brown in relation to the red, and the jacket collar is darker than Terrell's shirt collar. Both are lit under the same lighting conditions. The difference is subtle, but noticeable.
You can better see the difference in the white of the undershirt and the ribbed portions of the jacket here.
P.S. I really want a Saavik in her coat as well. With 2 heads, Alley and Curtis, as well as the bag seen in ST-III.