He’ll be fired before he starts. The internet is forever.
Here’s an interesting take on how this could play out: https://storify.com/GaltsGirl/wherein-therickwilson-explains-why-trevor-noah-wil
It is possible to protect anyone if you have the right players and narrative. Hell, we had audio tapes of Bill Clinton with Gennifer Flowers in 1992 and he still walked into office.
The key is whether the “Jews that control the media” (as Noah believes) are willing to drop the gloves down and take a punch for this guy. Having a known anti-Semite hosting a hot trendy show would be a major culture shift that may be costly.
“Never again” can easily become “Coming soon”.