Although most texts suggested that the New Republic left the Sanctuary Moon alone after the first year following the Battle of Endor, West End Games' dice and paper RPG allowed for Ewok characters to make their way into the larger galaxy. I'm a bit surprised that nothing was touched upon regarding Skywalker's confirming their belief in a flying metal humanoid figure.
On the flip side of the medallion, in preparing the area for their shield generator and defensive garrison, the Empire ended up carting away Bright Tree Village's rivals (whom you may remember from the Nelvana cartoon).
One could imagine an even more neurotic Umwak, having been questioned and examined by Imperial sentientologists, released into a world that calls his minor magics "The Force", and that he can just barely comprehend....
