Something related to education would be a better idea IMO.
I'm sure something like that will happen, some kind of commemoration in terms of scholarships, or a prize in his name for something related to literature, political writings, or for contributions to secularism or reason.
Another good idea would be for an annual lecture in his name, high profile, on subjects that are Hitchens-esque.
"we can smell traitors and country haters"
God is Love.
Love is Blind. Stevie Wonder is blind. Therefore, Stevie Wonder is God.