We haven't always agreed in the past, but we do agree on this.
I even posted something similar there too:
Same here.
I know that I'll probably get slack for this, but I always thought of Noob Saibot being a union of 2 souls in 1 body, much like how Ermac has 1,000 souls in 1 body.
If the 2 souls (the wraith and Bi-Han) can share 1 body, then I think that human Sub-Zero has a possibility of coming back, with the souls being torn from the body as Noob Saibot got kicked into the Soulnado.
Maybe the Soulnado seperated Bi-Han from Saibot, sending Saibot to the Chaos Realm and forming an alliance with Havik, while Bi-Han is sent to the NetherRealm.
Maybe in that process of going through the Soulndao, when Bi-Han is seperated from Saibot he arrives in the NetherRealm and is taken to the Prison of Souls.
Sub-Zero escapes from the Prison of Souls, and crosses the Bridge of Immortality, to reach Quan Chi's fortress, where he fights against Quan Chi's personal guards, Kia, Jataaka, and Sareena.
Once he defeats them all, he tracks down Quan Chi, with the help of Sareena (Sub-Zero Mythologies).
^^
All of that stuff about Sub-Zero escaping the Prison of Souls and meeting Sareena happens in MKM:SZ, with the ORIGINAL Sub-Zero (Bi-Han), btw.
How does anyone know that NRS won't make something like that happen, and give a nod to MKM:SZ with that, at the same time?
Maybe the Soulnado could have even cleansed Noob Saibot from the evil wraith in / soul taint in his body, returning Bi-Han to his former human self.
These are just brainstorms that some of us have thought of, but it clearly shows that human Sub-Zero in MK10 is possible, and even so through Bi-Han.