The only thing we know for sure is that James Gunn has written the new film, and while the movie clearly is written in the same continuity as the first Suicide Squad film, as it will include at least a couple of the same characters, it now appears that the rest of the team will be entirely different.
Is it called Suicide Squad 2 or is it The Suicide Squad?
The new Suicide Squad movie is so buried in secrecy and confusion that nobody seems to be quite sure what the new movie actually is.