The AOA was a timeline that came about because Legion distorted the time line by traveling back to before he was born and killing his own father.
In this reality, Jubilee was a member of Gambit's X-Ternals, a thief team that also included Sunspot, Guido and Lila Chaney, Gambits lover.
The X-Ternals were approached by Magneto (A good guy in this reality) to steal a shard of the M'Kraan crystal. Lila Cheneys latent power of teleportation, the X-Ternals were able to get to the Crystal and steal a shard of it. Upon returning home after the death of Sunspot on the M'Kraan planet, Guido turned against the X-Ternals and stole the shrd, as well as Magneto and Rogues child that was in Jubilee's care.
The cobined AOA X-Teams defeated Apocalypse and sent people back to stop Legion, but not before many casualities could take place. It is unknown whether Jubilee was among them.