Nah, just wishful hoping!
While I understand Subs is there for Scorpion first and foremost, I think that is just personal. Even with the story being different, neither would have a reason to be there without an ulterior motive so I have a feeling Sub is still assigned to to kill Tsung, even if it's just to follow up his brother's failure in doing so.
In regards to Goro winning, The original trilogy doesn't span much time, MK2 literally happened immediately following the Earthrealm tourny, and MK3 was already in place before the original in case Goro couldn't accomplish the task with Shang at the helm. They're literally like a years span total for all three. So for Goro to already see the betrayal of his race by Kahn isn't that far of a stretch
Still, all wishful thinking