no infact it would be nearly as pointless I think, I don't think Skyrim needs anymore "explicit" content as it may already have, its difficult enough to get a decent game without the pointless uproar such content provides, I rather it not stir up the hypocritical fires of todays society, mainly the US, were it is fine to behaed people and swear every other word, its even seeping into childrens cartoons these days but woe the moment a pair of fine jiggling melons pop out.
Either go all the way or don't go at all, a simple fade to black is utterly pointless as if desired one can easily surmise as much while "waiting" or "resting" Games like Dragon age and Mass effect are prime for such features -because they end- they are linear, the romance plot climbs along with the main plot, in TES one can ignore the MQ and go about their business and then what? is the companion put on pause? the "magick" will surely fade quickly no?
If Skyrim wont feature "complex" characters like FO3 did, which weren't that complex to begin with and pretty clunky, one shouldn't expect romance or six, real life six is better....or worse anyway.