Keep those expectations WAY in check then. MKX had 8 post-launch DLC characters, only half of which were Mortal Kombat characters, and of THOSE 4 DLC characters, 1 was Tremor making his fighting game debut outside of Special Forces, 1 was Triborg as a composite of all the cyborgs, and only Tanya and Bo Rai'Cho were characters with any merits in the actual Story Mode. Still can't believe they picked Bo Rai'Cho over Fujin, Rain, Sindel, Sareena, Smoke, etc....
So, yeah, keep those expectations firmly in check. We haven't gotten ONE guest character yet, and I would not be surprised if literally half the DLC will be guest characters like last time.