WestAllen (Candice Patton & Grant Gustin). 
Update: Wally asks Cisco to vibe him into the future to see Savitar murder his sister Iris so that he can figure out how to stop it.
Did The Flash change the future tonight? Production shot additional scenes of Savitar murdering Iris West for season three’s episode 15. Much of it seemed the same as the mid-season finale. One Flash (Grant Gustin) observes from a tree as another (Gustin) begs Savitar not to harm Iris (Candice Patton) as he runs to catch her. But there are differences. This time Wally West (Keiynan Lonsdale) and Cisco Ramon (Carlos Valdes) are there as Barry holds Iris in his arms. Grant Gustin and Candice Patton renact the mid-season finale.
Candice Patton sits on Grant Gustin’s knee and carefully stretches back to play dead.
Wally West (Keiynan Lonsdale). 
Savitar kills Iris in mid-season finale. Screencap. 
Grant Gustin after a take of begging for Iris’s life. 
Down on Waterfront Road is a new billboard: Welcome to Central City: Home of the Flash. 
Update: Kid Flash added to billboard on Friday. 
The Flash returns with new episodes next Tuesday, January 24th, on The CW in the U.S. and CTV in Canada.