The general standard of excellence is very high especially as regards pale selfs. There is always room for improvement though. Blacks can never achieve the size and type of the pale selfs, but the pale selfs will never achieve the almost perfect, even and deep colour of a black. Slight faults occur on every mouse, creases in ears, slight lines or thin unders etc. If you had a Dutch the same size and shape as a Pew, the Dutch pattern simply would not fit the mouse no matter what you did as the body shape would be wrong. You need the mouse to be "cobby" so the markings fit. I think the future is about small incremental improvements and concetrating on consistancy of colour etc. Remember, the vast majority of mice bred even today are not winners, and are often well off the standard of winners. We are always fighting a losing battle against nature, which wants all mice to the skanky little runty agoutis they all came from. Just keeping the standard where it is will be quite an achievement.