On Reddit u/OldString1 thinks that Kylo is going to make himself worthy of his late uncle’s lightsaber and will wield it side by side with Rey and the Resistance before Episode IX comes to a close. Getting his hands on the green lightsaber would pay homage as a, “tribute to Luke Skywalker and a sign that Kylo may finally forgive and even respect him,” they wrote. The color of the late Skywalker’s lightsaber is also important because its representative of “peace through force when necessary,” and this could be where Kylo is heading in the last film in the franchise. Now we do know that Mark Hamill will return as Luke Skywalker’s Force Ghost in the new installment, and it would be symbolic if the Master were to pass his legacy down to his Nephew. It would be saying, “I forgive you Kylo” and deem him worthy of receiving Luke’s legacy. With the added idea that he would be using it side by side with Rey to fight the First Order makes it feel like balance being brought between the two force connected characters, and finding it’s home in the hands of a descendant from the Skywalker bloodline.