Honestly, it's hard to say how things will go in the future. What is desirable today may not be tomorrow. I can remember the "Latin Invasion" as they called it in the late 90's and early 00's and how women were lusting after the likes of Ricky Martin (funny how that turned out). Flat butt - fake boobed - bleach blonde babes of the 80's gave way to the big booty gals like J Lo and the curvaceous beauties of today. Greaser's and bad boys with leather and motorcycles / hot-rods of the 50's... pin up gals were the desire of the men. Even earlier in history such as the Greeks, men who were of small endowment and good physical form were the desirable men of that time. Discipline of body and mind were more attractive and a large penis was considered barbaric. For all we know, men with small dongs might be the future lust of women... or perhaps women will find no use for men at all if technology reaches a point by which men can be 'replaced' as is the fantasy of certain extreme feminist movements. Too many variables. Every generation has their type... and every generation has a subculture that goes against that accepted type.