Not a real strong theory , in a Wob someone ask about Tarah and in Brandon's response he says we should pay more attention to her father. In Kaladins flash back Tarah tells Kaladin her father is making his special bread and then in Dalinars dream about Nohadon he talks about how much he enjoys making bread. Also the above Wob where he doesn't say Nohadon is dead makes me think more my theory might be right.