I think that it should reflect that for one thing why Saul is who he is, the why counts.
I think it should also reflect on Breaking bad leading up to it, how a exert from scarface "point your fingers and say there goes the bad guy" should be added into with cultural reference in better call Saul even written into the context of a episode itself.
I mean i think it should end in double fashion one where we meet him like we did for the first time where we meet him meeting with Badger and then again when we see him pull off some embezzlement no one ever even finds out about like the Train robbery in breaking bad and see Saul hopeful as ever riding off into the sunset with a Aphorism in the sky written to perfectly add language events. Doing something for his brothers name like pressing a plaque onto a wall and honouring the past yet still then at that all important moment leaving the audience with just as anxious for the future.
As i like to think only those who believe in the magnificence of their dreams can make them come true. My Quote!