"Ah. I am long since dead at that point in time." He's seen his future and already knows of his demise at the hands of Kenobi before the Rebellion manages to crush the Empire and Luke redeems Darth Vader to bring about the end of the Emperor. Maul doesn't sound sad about the fact he knows he dies. That is simply the way of things and he's resigned himself to the idea he will never gain revenge on all those he blames for the misfortunes of his life.

"Tell me, what is your name, young Jedi?" He's assuming she's a Jedi from what he can sense in the Force and the lightsaber she carries. There was something a little heartening to Maul knowing that the Order had survived in some fashion. He hated the Jedi of his time but that has more to do with the fact he feels the Order is full of corrupt, arrogant hypocrites who practice old rituals without truly understanding why they are even necessary anymore. Wiping them all out had been extreme but necessary. It looks like it helped to give way to a new chapter for the Light Side of the Force. No doubt he expects there are still Dark Siders around too even if the Sith might have ended with the death of his master.