Lighting while filming a movie makes a big difference in how colors are perceived on film. So the question is, do you want screen accurate or actual prop costume accurate.
The Han Hoth jacket was brown. It was proven to be brown in books, on tour in museums, and even the woman who created it said it was brown and showed pictures of her with it. Yet on screen at times it appeared both blue and brown. And people still insist it was blue. That was cool when SS made that figure and offered both colors. Curious how HT will handle that as well.
I have the SS Jango and doesn't bother me its purple. I think the purple pops more. And think I will stick with him as I have a feeling HT may not include a headsculpt and i do have the Ex Jango. And I've never had problems with anything falling off him. Although I did have his missle on his guantlet broken in the box when I received him, but SS replaced it immediately.