Yes.
Both the 9M and Freedom utilize 400 series lights for the inboard lights, the only difference being one uses strobe lightheads and the other uses LED lightheads. The corner modules in the 9M and Freedom are also the same size. Both lightbars use the same halogen heads for TDs and Alleys.
The LED heads are 12v, so you can basically use whatever flasher you want as long as it fits somewhere into an Edge frame. You'd just have to figure out if you want to bypass the main relay board or figure out how to wire the flasher through it.
If you have a flasher for your TDs inside the bar, there are some nice flash patterns for LED use.