So the brand split idea is pretty much dead I'm guessing.
There was an idea that Smackdown would be Bryan's show, but it probably should be Reigns' show since it's easier to hide his flaws on a taped show.
They could have the IC title just be the Smackdown belt since Raw and that belt haven't been helping each other since forever, but their priority seems to be more on "Smackdown needs to be seen as comparable to Raw", which is impossible, than on finding out ways to have more than one main event storyline at a time.