The original Connie II / Enterprise class TMP refit was and is the perfect version of this design. IMHO, it simply can not be topped, even now. It is sleek and futuristic and beautiful whether its 1979, 1992 or 2017. There is absolutely no reason that design could/should not have been used in the modern movies (exterior shots, at least) and I was really hoping (especially with how close the saucer from '09 seemed to be at times) that its first refit would realign it with its former canon.