Sara will get a magical illness, which will later become a superpower.
Ava will experience some personal growth this season because she is currently unemployed; in the wake of the events of "Hey, World!", the Time Bureau was shuttered, meaning the Legends are now once again the timeline's last line of defense and Ava must figure out what comes next for her.
Tala Ashe will be portraying a different version of Zari. This version of Zari will "come in like a hurricane" and is expected to be hated but then maybe loved by fans.
The new historical villains will be called "Encores".
Astra will be the main antagonist of the season.