after reading the SLM I also thought that nomad seeing kaladin was a hint to him being alive though I know it could be many other things as well. But in a reread of Oathbringer when zahel and kaladin are fighting zahel eventually tells kaladin that he can’t join the ardentia because he won’t be able to stop doing what he’s doing because WAR is in his blood. War light is the mixing of honor and odium So I think this is foreshadowing that Kaladin will take up the shard of honor and odium though this likely wouldn’t be until much later, probably SA 10.