The biggest revelation from Ahsoka's first two episodes is that Thrawn and Ezra Bridger were sent to another galaxy, but it's not the most surprising one. In between the Battle of Lothal and the start of this new series, Ahsoka trained Sabine Wren as her Padawan learner. Making Sabine a Jedi doesn't break Star Wars canon, but instead, it actually restores changes made during the prequel trilogy.
Source：https://www.cbr.com/ahsoka-sabine-wren-jedi-breaking-canon/
