Scene from the images above are a new resurrected Clark Kent (portrayed by Henry Cavill) and Diana (Gal Gaddot) inside the bat cave with the Batmobile seen at the background. 

It was also reported that Ben Affleck returned to the set for reshoots and additional Batman scenes for the movie. Teher will be 4 minutes of additional scenes added. Director Zack Snyder has this to say:

"I think he forgot how uncomfortable it is, but that's fine. He was incredibly gracious and again it's funny how they just [snaps fingers]. A couple of the costumes, y'know, have been in archives for a while... They were all over the place, in museums and stuff and we had to tear 'em out of there. Y'know, I think one of the cowls was put on and just kind of like ripped in half."

Zack Snyder's Justice League will star Ben Affleck as Batman, Henry Cavill as Superman, Gal Gadot as Wonder Woman, Jason Momoa as Aquaman, Ray Fisher as Cyborg and Ezra Miller as Flash and will premiere next year, 2021 on HBOMAX as a four-part mini-series.