Anything is possible, but the reality is that people are not exactly thrilled with Pence right now regardless of a role or not. As far as most are concerned, the DEMS think Pence was a hero and the average Trump supporter think he was a traitor (except for Wictor). So the reality is, Pence need not worry about stealing thunder, but he would certainly be a distraction at the event.
Remember that we are watching a movie....