I still believe that K has feelings for Nico too. I don't think KN could ever really be dropped, because there's much too much history between them. At the very least, we'll always get subtext -- we'll probably forever get a whole 'will they or won't they' storyline for them.

A friend of mine who SUPPOSEDLY knew BVK, told me that if BKV had stayed on past what was his last issue, he would have eventually made Karolina and Nico a couple. Take it with a grain of salt, obviously, but IMHO it's pretty obvious that he was leading up to them eventually getting together.