What do you mean by "last word"? Are you predicting that Shujinko won't appear in the comic again in the ten years leading up to MKX?
As for Daegon, Kittelsen's story could certainly veer in the way of a Takahashi family reunion down the line. If it does I would fully expect Daegon to become a prominent comic character well before then, so that the climactic resolution has weight for more than just Kenshi and Takeda.
The good news is it's conceivable that Scorpion will take a break once he beats the shit out of Havik. The bad news is this fight coming up probably isn't the one that wraps their story. It's just here to set up the fight that will wrap up their story.
It could be worse, though. Kittelsen can write the crap out of Scorpion, and importantly enough he's not above taking a couple of shots at the guy (his touchiness about any career defeats).