One of them could also be a strong selling point for DLC. Rain would be least likely because he was DLC for 9. We could think about would make most sense for the story. Shang could have a role anywhere when time travel is involved, plus there's the Liu Kang skull-fireball from the story trailer. Very likely imo. Noob was last kicked into a Soulnado. Could have survived and come back anywhere. Maybe for a new conflict with Scorpion since he and the younger Sub made peace? Rain was allied with Mileena in MKX and a good portion of that faction died in that game. Could maybe find new allies in Outworld, potentially even side with Kotal Kahn? I don't see him play a huge role in time travel events, he didn't have that big of a role storywise before. So storywise, Shang Tsung very likely. Between the other two, Noob has more intrigue to him imo due to his uncertain fate after MK9. I personally don't really know where Rain would fit in. Any thoughts?