No, if it’s more than 2 years into Trump’s term, then he still gets to serve two full terms. He could conceivably serve for 10 years. He needs to take over sooner than that.

Besides, bad as Vance is, every day with Trump is far worse. At least if Vance took over Stephen “PeeWee Himmler” Miller would probably be out quickly. He’s Trump’s Wormtongue, whispering poison into his ear, and with pair of them gone, some of the worst behavior would calm down a bit.