K&H have said in the entertainment Weekly interview that Oz is not a question of ‘if’ but a question of ‘when’.
And, ‘just’ a nod, no, that really wouldn’t be evidence of anything, really, but naming Henry’s father Neal Cassady is more than just a nod- the fact that the name Neal Cassady is heavily connected to Peter Pan is evidence, to me. I haven’t seen stronger ‘evidence’ pointing to another character. So, the Neal Cassady clues tie in with TheGoldenKey’s theory of Bae being PP and Henry’s father. Names are all- important to these guys…they did the same thing with LOST.