Looks like Clayface might be part of Reeves's upcoming Bat film.

Source

I'm almost certain that Reeves will use the OG Golden Age Karlo as the reference. He might merge him with certain other characters like Hush, Zsasz and the Impostor Batman from Tomlin's mini. There might even be elements from the Preston Payne version. The monster blob version is unlikely to be part of this universe. Maybe he'll get a chemical bath by the end that gives him a look of a melting man aesthetic but that's the extent of it. Not only does this fit the style, tone and precedent set by Reeves but also because CBMS are going downhill critically and commercially. People are losing interest in CGI monsters. Movies such as Creed, John Wick and Top Gun show that tastes in blockbusters have somewhat shifted. Batman's monster villains wouldn't even crack the top 10 in his rogues, arguably not even top 15 in terms of popularity or story value.

What amuses me is the eventuality of die hard fans turning on Reeves in favor of Gunn/DCU. CBM fans are seriously fickle. Imagine turning on a film maker because they don't want to use CGI blob villains or sidekicks.

@entropy_aegis said:

Ugh, I'm honestly completely f**king done with uber-realistic Batman movies at this point. Nolan's films worked because they treated "Batman in the real world" almost as a thought experiment and made sure to still make the characters larger than life even if Gotham itself post-Batman-Begins was basically just Chicago under another name. The Batman had no grand ideas, nothing new to say or do, it was just "hey, people liked the Nolan movies, right? Let's do that but double down on the realism". The only remotely unique thing they had going was ripping off the "evil Wayne family" plot point from the Telltale games and they didn't even have the balls to fully go through with it.