Super Smash Bros. Ultimate has a wide variety of characters from different franchises, some guests, and others that are originally from Nintendo. During the Fighter Pass many rumors about the possible fighters that would arrive On delivery, many fans of this title want to see their favorite characters in the meleé fight, but unfortunately the DLCs will end the Fighter Pass 2, so there will be no new characters after this. In the same way, the hope that a dear character of Mortal Kombat I arrived for a future installment of Super Smash Bros. Ultimate.
Recently, Ed Boon, the co-creator of Mortal Kombat, has been in a interview with Shack News where he has been asked about the possible collaboration with NetherRealm Studios, and says that would love to see Scorpion in an upcoming game from Super Smash Bros.
“For me personally (I can't speak for everything Warner Bros or anything), that would be like a seal of approval. It would be like being part of the gang and all that. I would love to see that."
Although Boon has not confirmed it, it is an indication that possibly one of the characters arrives as a guest to the game, since in Super Smash Bros, Nintendo has not done collaborations with NetherRealm Studios or Warner Bros. It would be a big surprise that we saw the characters of these companies joining as DLC in a future installment.