The Als have released Edwards as of today, 18 August.
I am not surprised. Can't see trading him, there isn't a team in need of a running back (except maybe Toronto).
The only caveat is this. Payton has looked great, but against (a) a team that is traditionally weak against the run anyway (Toronto), and (b) a team with a makeshift defensive line due to injuries (Calgary).
That said, however, I am content with this move.