Warning! This article contains spoilers for Ahsoka episode 7.
Summary
- The story of Ahsoka is expanding, indicating that Luke Skywalker will play a role in her story and the New Republic Era of Star Wars.
- Leia Organa's involvement in Ahsoka's story suggests that Luke should also get involved, especially considering the information she possesses about fallen Jedi aiding Grand Admiral Thrawn.
- The return of Thrawn and Baylan Skoll's hit list targeting the Skywalker family indicate that Luke will need to step in to protect himself and his loved ones, making his return to the Star Wars universe inevitable.
The story of Ahsoka is expanding within the Star Wars galaxy and even a brand-new one, and as it does so, it's creating more signs that point to Luke Skywalker. As the former Padawan of Anakin Skywalker, Ahsoka (Rosario Dawson) is no stranger to the Skywalker family. Her past has not only been mentioned in this series, but also shown, as Ahsoka episode 5 sees her experience some of her Clone Wars-era memories with Anakin. It's only been a matter of time until the Skywalkers made their way to Ahsoka's story.
Hayden Christensen's return as Anakin Skywalker in Ahsoka has been the first major step, taking the brief Skywalker mentions a step further. The time period and the inclusion of the New Republic, however, has been begging for the Skywalkers who are still around to get involved next. Seeing as Luke has already gotten involved in the New Republic Era of Star Wars and met Ahsoka, the story of Ahsoka is starting to prepare for him to join in next.
Your browser does not support the video tag. Leia Organa Is Involved In Ahsoka's Story – So Luke Should Be Too 
Leia has already gotten herself involved in the story of Ahsoka, thanks to her role in the New Republic. The Skywalker sister is first mentioned in Ahsoka episode 5 by Carson Teva, who reminds Hera that she can't cover for their unauthorized mission for much longer. Fast-forward to episode 7, where Leia has sent C-3PO in her place to insist she had, in fact, authorized Hera's mission on Seatos. Leia has now established herself fully into Ahsoka's story, and given her position as the leader of the Defense Council for the New Republic, it makes complete sense.
Leia's involvement in the events surrounding Seatos should concern Luke now, too. If Hera has shared her full findings with Leia, then there's no doubt she's passed them on to Luke, seeing as he would deserve to know about fallen Jedi such as Baylan Skoll and Shin Hati. He may be knee-deep in building up his new Jedi Order, but Luke is also undoubtedly a strong part of what was once the Rebellion, and the knowledge of fallen Jedi aiding Grand Admiral Thrawn's return should pique his interest enough to get him involved like his sister.
Star Wars Is Doing One Of Luke's Biggest Post-OT Stories From Legends 
The story of Thrawn's return in the post-Galactic Civil War era is a direct reflection of his original story in Legends, something that Luke was a massive and key part of: Heir to the Empire. The trilogy that introduced Thrawn to the galaxy has already been a major source of inspiration for this current New Republic Era of Star Wars, from Jacen Syndulla taking the name of Jacen Solo to Captain Gilad Pellaeon making a brief appearance in The Mandalorian season 3.
The recreation of this story shouldn't happen without Luke, especially now that Thrawn's return to the Star Wars galaxy is inevitable with Ahsoka season 1 drawing to a close. Luke was such an important part of Heir to the Empire, and it seems unrealistic that he would continue to sit on the sidelines when Thrawn does make his triumphant return. Not everything from the Legends trilogy will stay the same, as it obviously hasn't already, but Luke's part in it all deserves to be seen.
Baylan Skoll Was Seemingly Hunting The Skywalkers 
If it's not Thrawn who causes Luke to jump into action in this story, then Baylan Skoll should do the trick. Viewers have figured out that Baylan has a hit list targeting the Skywalker family, which he carries with him on his wrist. The Aurebesh letters there describe it as target data, and it goes on to list the names of Luke, Leia, Han, "Chewie," Ben, and even R2-D2 and C-3PO. Anyone who was closely associated with Luke in the original Star Wars trilogy has made it to the hit list, even the droids.
Baylan is then drawing a straight line right towards Luke in this story. He's familiar with Luke's father and somehow knows that Anakin became Darth Vader, which certainly isn't common knowledge in the galaxy. If Baylan intends on crossing Luke's path at some point in this story, then it's inevitable that viewers will see a return of the Jedi to protect himself and his loved ones.
