Not only will they, but Trump's Secretary of Treasury will order the IRS to cancel the program as soon as he's elected.
He had 4 years to do that and it never even came up. To the degree that he's an opportunist, and doesn't hold stock in Intuit, he might support it (or at least not oppose it).
GWB was worse by far. At least Trump didn't start two massive unnecessary 20-year-long foreign wars that ended up doing nothing but slaughtering millions of civilians, thousands of US citizens, wreaking widespread destruction of both human and non-human environments, and cost US taxpayers untold trillions of dollars that could have been spent elsewhere.
However I do believe that he would flip sides if it seemed like popular sentiment was flipping, and he would claim that he's been in favor of it all along. If this program is successful, that might actually happen, and of course he'll be sworn in by the time the broader program is rolled out, and he'll take credit for it while finding some way to blame Biden for not having it sooner (even though he had 4 years of his own to do it and took no action).