For the foreseeable future, they intend on keeping their films squarely in the PG-13 realm — although that’s an admittedly flexible field.
The primary impetus for this creative decision seems to be a desire for tonal consistency so that each and every entry in the proper DCEU canon feels like it belongs.
In response to a recent fan petition to make Suicide Squad an R-rated adventure, it was revealed that there are no plans to release any R-rated DC movies in theaters.