Our Red Arrow is a Cadmus clone, Speedy was kidnapped "soon after" starting to work with Green Arrow (around 3 years ago) and cloned with (what I assume is) a less advanced version of Superboy's Red Sun thing. Red has one in Broken Arrow, maybe more, and I felt cheated when they revealed that the first episode focusing on Roy made us have a forced perspective and a timeskip.
But Miss Martian removes all traces of them in Superboy and Red, so chances are they cant mole at all. Speedy, however, is still in Cadmus, very close to where cwazee compact Emoboy of the carved S shield is, as the Light cart away "useful" Cadmus projects and defeat/maybe kill Guardian. But Speedy...he's missing an arm... and looks young. Red Arrow goes through some "I am clone, what is my identity?!? Searching soon, but will likely stay with Red Arrow and be a team associate.