Like the OP states, it's a rumor at this point, nothing more.
The only thing that makes me think there might be something to it is the behavior of Pence in recent days. It seems like he is purposely distancing himself from the candidate... why is that? Very unconventional, especially considering Trump's attitude toward dissent.
Probably Pence thinks he still has a future after this.
He doesn't.
Trump has probably excluded you guys from the White House for a generation.