I think Louie is the logical evolution of Seinfeld. Seinfeld often comes on the show as himself and he's a real dick to Louie. It's amazing.
I'd rather say that Louie is the
real show about nothing (as opposed to Seinfeld, which, despite how it advertised itself, it was always about
something, with clear 3 act structure), while the evolution of Seinfeld would be Curb Your Enthusiasm.