The Mandalorian season three ended with quite an optimistic finale. Din Djarin adopted the foundling Grogu, Moff Gideon’s plans had been foiled, and Mandalore had been taken back by its people. On the other hand, Ahsoka didn’t have the same kind of happy ending. Instead, the season ended with a returning Grand Admiral Thrawn ready to finish his plans of conquest that had been put on hold due to his exile. Now that he’s returned home, Thrawn will do whatever it takes to regain power. That may include finding himself allies, even one we may have already disregarded too soon.
At the end of The Mandalorian Season 3, Moff Gideon reveals his grand plan to Din Djarin (after it had already been ruined). He explained that the clones of himself that he had created possessed the one thing that he could not: the Force. This would make the clones much more dangerous than the original donor. However, all clones were seemingly destroyed, but was Mandalore the only place his clones could be?
If a Force-sensitive Moff Gideon clone is lingering in the galaxy, Thrawn could eventually learn of it. With the assistance of the Grand Mothers, almost nothing will stay hidden from Thrawn. Additionally, Thrawn could have a use for Force wielders on his side now that Baylan Skoll and Shin Hati are stranded behind in a distant galaxy. The Force was the one thing that always bested Thrawn, so a Gideon clone could be a helpful ally. Now that Ezra Bridger is back in the main galaxy, someone on Thrawn’s side will have to match him.
There is also a possibility that the original Moff Gideon still lives because it's Star Wars. How many times has Maul or Palpatine come back? Gideon's return would set up tension with the villains. While Gideon possesses an insane amount of intellect, so does Thrawn. Therefore, Gideon's smarts won’t get him very far with the Grand Admiral. If anything Thrawn would most likely feel threatened by Gideon. Unless there were a clone of Gideon that could specifically wield the Force as the original clones could, Thrawn would only see the clones as a liability or even a threat.
There’s been a lot of speculation on the future of The Mandalorian Season 4. While there are many uncertain factors as of now, Season 4 would most likely be the place to confirm the survival of a Gideon clone, leading to a potential partnership with Thrawn. Additionally, Ahsoka Season 2 will likely not be the only place we see Thrawn. Dave Filoni’s post-Return of the Jedi film will surely have both familiar faces and continuing stories from all the Dinsey+ series prior. This may be the perfect place to showcase Clone Gideon’s force capabilities alongside Thrawn, especially if we are to see the return of the Mandalorian in Filoni’s film. Could Gideon be the start of Thrawn’s quest to take back his Galaxy? Regardless, Thrawn seems to be far from finished with his home galaxy.