Depending on how much the guy is valued and their assessment of the damage he's caused, they'll likely make him sweat a lot as a way to teach him a lesson but they'll keep him in the end on the knowledge that he has been "baptised" by fire. He's young and no doubt his superiors will take that into account and say it's naivety - people do crazy things to impress others romantically.Sounds like sour grapes to me.
He has no real argument, merely assumptions and suppositions.
Here's Pfizer addressing the controversy.
If this guy wasn't an employee, they would have said so. At least that would make sense to me. They don't even mention the guy or Project Veritas. Their approach seems to be to ignore it as much as possible until it goes away. They're probably not even going to fire this moron. If they did, they run the risk of him turning whistleblower and just having him Epsteined would invite even more scrutiny.
So far, no media reports about any of this other than Tucker.
I doubt he gets fired if he's actually good at his job but I don't think his life will be easy given this incident.