If they did that, I'd probably laugh for a second and continue playing as if nothing had happened, tbh.
edit: and I really like Lana.
I hadn't seen the trailer before reading this thread and I just had to check it out to see how horrible the new look was. You guys seriously piqued my morbid curiosity, but for all the hate I gotta say I'm disappointed. I don't know what I was expecting, but it turned out to just be some stylized mohawk. Maybe I listen to too much punk rock, idk, but it seems fine to me. Customization options would be nice after the whole traitor story is played out, though.