If Ahsoka is in fact in the World Between Worlds, she might be able to hop on a shortcut to where Sabine, Baylan, Morgan, and the others are all going. There's no reason to think the Force realm couldn't stretch across multiple galaxies, and since it allows its residents to travel through time, she could even get there before Morgan's hyperspace ring. Of course, that would require Ahsoka to control the magic within the dimension — something that's easier said than done.
The truth is, very little has ever been revealed about the World Between Worlds. That means that Dave Filoni and the creative team of "Ahsoka" could use it for any number of reasons. It also makes the next four episodes difficult to predict. One thing's for sure: Sabine and the rest of the galaxy are in danger if Thrawn starts reclaiming his power. Baylan has also alluded to some larger implications of the Grand Admiral's return, which, given his Jedi training, could be Force-related.
To be honest, though, most fans probably aren't thinking too hard about what comes next. The mere promise of Anakin and Ahsoka catching up in live action is enough to keep excitement high while we wait for Episode 5. Let's just hope that the cameo is genuine and not some trick of the dark side — after all, Darth Sidious is technically alive at this point in the timeline, and he tries to control the World Between Worlds in "Rebels." In "Star Wars," it's sometimes hard to know what's real.
