A Fett movie is a pretty good bet at this point – no doubt why the character has continued to a focus of rumors – and we do know that Kasdan would be writing one of them. So it’s plausible, if nothing else.
Schnepp’s Fett comment comes at 04:10. “I know for a fact,” he says, though they then joke about a site that’s known for running (even more bogus than usual) rumors, so who knows. There’s another significant Star Wars portion that runs through 57:50 to about 1:21:00.