We should be able to do a lot more with our lightsabers. In knights of the old republic 1 and 2, there were a ton of different crystals that gave your saber attributes against droids etc, and you could put three of them in your lightsaber(not including your color crystal). maybe go a little more in depth with the lightsabers customization and capabilities to make it more complex and fun.
Focus Crystal attribute idea's/ Examples
Adegan +2-5% Damage
Barab Ore Ingot +2-16 fire damage (makes your saber burn extra hot??)
there are lots of variations you could make for jedi, crystals that have extra powerful bonuses when used in conjunction with each other in a saber. i understand you would have to upgrade weapons for every class in such a manor, so why not make crystals with variations for each class, and also crystal combo's that would give special bonus's for each class but would be class specific combinations for said bonus's