According to Schmoes Know, Disney is in talks with Ewan McGregor to reprise his role as Obi Wan Kenobi in what might become a trilogy of Star Wars anthology movies. The talks are for the actor to play his years after the events of Revenge of The Sith. But he won’t be alone as Darth Maul has been mentioned to be in the film as well.
As a trilogy seems to be too stretched out I can see Just one or two of this ark in Obi Wan’s life as he watches over and protects Luke Skywalker as he grows up on Tatooine. As for Darth Maul it’s a no brainer to bring him back, as we know that he in fact did not die from being sliced in half, but was found by his brother and then received cyborg legs in order to take his revenge on Kenobi, so seeing Maul hunt down Kenobi throughout the galaxy to finally come to a showdown before A New Hope does sound interesting but I doubt it can be stretched for a trilogy. Again take this all with a grain of salt.