You guys realize that swords are already in the game, right? In the Star Wars universe, all melee weapons are "vibro" weapons, Gamorrean Axes included. There are also "vibro" hammers, daggers, knuckles, staves, whips and more. Read up. Even Revan and the Jedi Exile potentially wielded an axe or axes.
so what was all that weapon breaking I was watching in episode 6?