Clinton's speech being an hour late is just one last FUCK YOU to people by the Clinton's, she knows that it is all over, so she is working to keep the light on her till the last possible second.
I predict that Trump is conciliatory to her, and does not go after her. I suspect that what will happen behind the scenes is someone will tell them, clean your shit up, the foundation needs to be an open book, the e-mail thing will go away, and you will fade into the background, if not, then all bets are off and DOJ will come after everything; and she will do it, it is all she has left.