The only way to make Episode IX cool is to open it with a scene of a third group, ptreviously unknown to Star Wars viewers, destroying both Rebellion and Empire.
You mean Resistance and First Order. But yeah. After Snoke was killed, not to mention the Resistance is pretty much nearly extinguished, we’ve pretty much got the end of the saga as it is. Can’t expect Leia to play any more role in the story thanks to Carrie Fisher’s death. A third faction may be the only way an Episode IX would even be feasible.