Not likely. A good deal of Lincoln, T. Roosevelt, Eisenhower, and Reagan still exists under a Republican label. If Trump and his supporters can’t reconcile themselves, they’ll have to form their own party. While Romney couldn’t win without the “deplorables”, Trump couldn’t win without the support of the established Republicans.
The Democrats have moved so far to the left, that they no longer the party of Roosevelt, Kennedy, etc. A more likely scenario is there will be three parties in the future, a “Progressive” (non-democratic, socialist, woke, authoritarian, elitist), a MAGA (populist, “deplorables”), and one (or perhaps two) moderate parties in the middle. In fact, that’s already happened, and what is left to see is how they organize themselves.