Meaningless without a GOP candidate selected and almost certainly savaged mercilessly during the campaign by opponents in his own Party. Also, as pointed out to you, way too far out to draw conclusions.
Lastly, pick any two of 3 looming indictments against Trump, including co-conspirators; GA, 1/6 or Mar a Lardo. Trump's candidacy either will not survive or be so damaged in the eyes of a clear majority of the country that he will have no chance against Biden.
And third, don’t forget, the other side has troubles, too. Given their druthers, Republican elites would prefer to nominate someone more electable than Donald Trump. Trump has already lost to Biden once, faces multiple indictments, and his penchant for chaos and controversy is hard to quantify. Trump’s presence on the ballot will also guarantee a large turnout to vote against him.