Kal with Chana? That would be garbage. I'm not up for another Kal off-panel relationship. Sanderson has 2 options, Kaladin without a partner because he could still be happy, or Kaladin with Syl, who are soulmates. As the guy above said, there were many parts of the book that point to Kal and Syl being something more. Syl becoming Kal's scribe, Renarin and Drehy's conversation about romance and that we are all people, I don't remember the chapter but there is a mention of some sprens getting married, the dance scene. There was a lot of Syladin flirting. If we have humans dating kandras, Tavanast had a dragon as a partner, then a human (now a herald) and the spren queen having a romance shouldn't be far-fetched.