Is the Kett heading to the Milky Way Galaxy ( Earth) ?

Assuming they even know which galaxy the Milky Way is why would they? They haven't even conquered the Andromeda Galaxy.

With the exception of the Destroy Ending, they'd be...boned. Or Refusal. Still, if the Reapers noticed them, they'd come back, and turn them...well, you know what they'd do. They kinda have one response to every situation. Wonder what a Kett Reaper would look like? Control or Synthesis would end...badly. Especially Renegade Control. Then the Shep Reapers would probably decide that Andromeda needed a bit of incentive to stay out of the neighborhood. The Kett ran into the Andromeda Initiative, NOT the military. Turian Dreadnoughts, Krogan ground troops, and Human Carriers would fare better against the Kett...backed by Reapers.

If the ketts don't want to meet their end, they better not try to go to the milky way where they could meet the reapers, by the way they have so many species to conquer in andromeda that they are probably never going to go that far, and if they do, it would be in such a long time.