If they're thinking of changing the uniforms, why not let the crew become involved with the decisions? It may take a bit longer to come to a decision, but I'm sure new uniforms aren't a dire emergency.
I understand that crew apperance has a psychological affect on passengers ( sometimes a very large effect ), but I always feel sorry for the poor crewmwmbers ( front, and back end ) when their employers go overboard and dress them up like Prostitutes, and Russian Admiralty.