This chap made it clear which direction Sanji is going
However it still not clear where it leads to.....Momo or Kinemon.
I think it's logical to assume Sanji is going for Momo now
Sanji is going in the opposite direction to where he was originally planning to go. You can tell that by the beaten up guys on the floor. As logically Sanji would pick one up from the direction he was going, not someone behind him. If his original direction was towards Kinemon, that means the opposite is Momo.
The fact that Oda made it a mystery....makes me think we will find out in a few chaps. By then it should be Sanji's matchup chap. So im assuming it will Momo, and we see Sanji saving Momo from King.....after King defeated Marco.