Well, I dunno but I just have a huge hunch that sooner or later a story pack is gonna come, and it just might have the people in the "Kombatants" section of the concept art: Rain, Fujin, Baraka, and Bo rai cho. I could totally see Rain, Fujin, and Baraka, they've all been redesigned a lot and have the fanbase, and they might have another guest for a 4th, or someone else from the story like Smoke (oh escuuuuse me his name is enenrenrenrenra now) or Sindel. just my thoughts.
Also, the "ugh this character is redesigned as much he wont come" argument is invalid, because playable Tanya is a completely different monster than story Tanya