Board Thread:Mortal Kombat X/@comment-49.193.83.176-20140901102236/@comment-5746209-20150113215551

Okay, I think I know who this Sub-Zero. It's not a single or new Sub-Zero, but infact BOTH Bi-Han and Kuia Liang. Think about it: in MK 2011 both brothers were playable as Sub-Zero as alternate costumes and the MKX story goes over 25 years, so it could be more than one individual. So during the Netherrealm War (when Shinnok invaded several realms), Sub-Zero is Bi-Han, purrifeid after Noob-Saibot was kicked into the Solnado. However, near the end of the Netherrealm War, Bi-Han dies in the process of rescuing his brother's soul, who returns back as Sub-Zero for the rest of the events.

Along the way, Scorpion could notice this and realize Bi-Han didn't kill his clan. Thus he helps rescue Kuia Liang as an apology for what he's done and join the protectors of Earthrealm. This would explain why he isn't hunting the Sub-Zero and has rebuilt his clan in the comics. In the final battle, Kuia Liang and Hanzo then face against Quan Chi, who they discover is responsible for all their suffering, and together kill that motherfucking soccerer, finally giving us that Scorpion and Sub-Zero team up we've always dreamed about.