I wouldn't count on it. If they'd had sequences and visuals like this already filmed and rendered, Whedon would have probably worked them into the final product somehow.
This is concept art, and it's things the movie wasn't going to be after the reaction to BVS. I doubt they're giving him enough money to finish it in a way they wouldn't even allow him to begin when he was on the project. Keep in mind, Whedon added CGI and color grading to the final battle, ostensibly to make it more visually striking than what was there in Snyder's version. We'll see.