While the DCEU may have been uneven, the decision to have Swamp Thing go into the horror genre proves that James Gunn's DC Universe is avoiding Warner Bros.' past mistakes after Tim Burton's Batman movies. One of the big surprises that were revealed by DC Studios earlier this year was a new Swamp Thing reboot, with James Mangold officially tapped to direct and write it. While Swamp Thing had his own show only a few years ago on the DC Universe app (now known as DC Universe Infinite), this will be the character's third cinematic portrayal since 1982 and 1989, respectively.
https://screenrant.com/swamp-thing-movie-horror-tim-burton-batman/