We could see Nate Heywood die to bring back Vixen, or Rip Hunter sacrifice himself — comfortable with the knowledge that his team will be alright without him.
Even Sara Lance (who is no stranger to death) isn’t entirely off of the table at this point.
Amaya Jiwe has to live to see the creation of the modern day Vixen, so she seems safe enough.
This raises some genuine concerns about who is going to die tonight.