While I really don't care who he ends up with, right now the manga(as it stands now character wise) only seems to point to Sakura() or Karin. Or alone of course.
Well I suppose anything is possible, its really up to Kishi, he can do anything he wants with the story. Though if Sakura still wants to be with Sasuke after all this she's definetly a masochist if not just plain dumb. Seems a bit ooc also, since she's strengthened so much.
Most likely NaruHina(I think their children would be strong and cute) and SakuLee, yes its true Sakura would have to put up with the springtime of youth bs, but I think anyone would rather have that than Sasuke's comments and thoughts, which normally are either sour or "..." . At the same time, I wonder what SakuLee's children would like like? o_o
I'd also like to include the Part II bell test with Kakashi, while theres not much development there, you notice that both Naruto and Sakura notice some of the changes in each other. Naruto for one notices Sakura's amazing brute strength, and later Sakura compliments Naruto as being the number 1 unpredictable ninja for coming up with the idea on how to take the bells from Kakashi. She used to use that term more as an insult back in part I, but here it shows that she appreciates his peculiar way of thinking. Just a little addition there, great points deafdrum