I would rather like it if, later on, we get a bit of a twist, where the Stormcast perform some sort of act for the purpose of stopping Chaos at the behest of Sigmar, that leads them into a moral dilemma, or crisis of faith, with regards to whether what they're doing is really "Good", or if all they're doing is trying to stop Chaos at any cost, i.e. "The ends justify the means", and going all Ozymandias. They're already starting to become colder and less human, with all this reforging business. I mean, it probably wouldn't devolve into anything more serious then a splinter faction of Stormcast Eternals or some such, so they can sell more models, but the idea is interesting. I always thought of Chaos as two sides of the same coin. Currently, the Chaos gods have become twisted and cruel, due to the constant conflict taking place everywhere, all the time, but I also think there was potential for good as well. The Warp, after all, is where the thoughts of all sapient creatures are given form, which implies that the good emotions and values have to collect somewhere. I'd always thought that the Chaos Gods eviler traits were just much more dominant then their better traits, due to the near constant wars perpetuated, in part, by the Chaos Gods themselves.