When Worlds Collide
Prologue
What happens when Legends and Canon meet? This is what happens.
Disclaimer: I own nothing, Disney does.
In the beginning, there were only two universes, one where events happened and are recorded as history. The other, where beings from every era and race existed, from before the dawn of the Galactic Republic, more twenty-five thousand years before the Battle of Yavin, to the time after the end of the One Sith Empire, under Darth Krayt and the founding of the Galactic Triumvirate, one hundred and forty years after the Battle of Yavin. It was here that they all could live together in harmony, no matter their allegiance, Light Side/Dark Side, Rebellion/Empire/Republic, Jedi/Sith/Mandalorian, even the criminal empires of the Hutts/Black Sun/Zann Consortium, all of them, living together, for the Force had made it so that when a new person of significance came into being in the universe of history, they would be immortalized at the height of their lives in the universe of unity. Such is the will of the Force.
Everything was as the Force had wanted, however recently, it came to the Force's attention that the two universes that it had created, were splitting into four universes, where things take different turn then the Force's original design, somethings were the same, others radically different, it confused the Force. Looking on this new development from her realm, in the body she crafted for herself, the Force took note of the differences in history and characters that it didn't knowingly create. One time, she personally went to see these new universes, to witness things up close, not in the body she crafted, as the omnipresent energy field everyone knew, when she returned to her throne, there was a mysterious datapad on her table that was labelled: Information & Orders. Reading through the info the datapad had, the Force had an angered look on her face. "Who do these people think they are, ordering me around? Telling me that the universes that I created are not to be my main focus, instead to focus my attention on these two universes that came about, supposedly, because of them, and what in the name of me do they mean by Canon and Legends. Well screw that, I am the deity of this realm, and I will not stand for this. Let's see how they like it when I put them back together."
The Force tried to put the four universes back into two universes, but it quickly became apparent that the two universes of history would not fuse back together, however, the two of unity could be forced to interact and so the Force set about putting the universes back together. As it did so, a thought crossed its mind, 'Heads are going to roll in confusion.' In the Force's new plan for the future of her creation, things will happen according to her plan and some things will not be according to plan.
This is the Emperor of the Multiverse signing out, Peace.