In Wind and Truth, it states explicitly that honorspren are explicitly honor, and cultivationspren are explicitly cultivation. The only two types to not involve both shards. It says this outright. Lift is also totally unable to expel her lifelight like normal stormlight. I don't think she can supply it for anyone unless someone can forcibly remove it from her body which uh- sounds like torture. She, Rysn, Sigzil, the heralds, and the unoathed are going to play a much more important role in the next arc though, likely as main characters. I wouldn't be surprised if Shallan, Jasnah, Szeth, and some others play less of an important role, or at least spend MUCH less time in focus. We're probably going to see some other shards, at least one, probably two or three, coming to Roshar. If not, they probably will be directly involved through the second half. We'll definitely see more expansion on the fragments of adonalsium left on Roshar, such as the wind, and very likely a rebellion of the fused, or a significant portion, against Retribution. They're not gonna like being in perpetual darkness and will see it as a betrayal, an injustice for their sacrifices. In my heart I want to see Harmony lay the smackdown on Taravangian but it's not to be, and Saze was always more lover than fighter anyway. But yeah, it's gonna be crazy.