Why instantly repairing Pearl Harbor's battleships changes little

What changes if every US Navy ship lost or damaged at Pearl Harbor is magically repaired on 9 December 1941?

Very little strategically: the battleships add bombardment capacity, but the Pacific campaign remains a carrier war.

Immediate repair would provide more ships for bombardment and other second-line battleship duties. Those ships would have little effect on the rapid movements required of the main task forces. The assessment therefore leaves the campaign centred on aircraft carriers despite the extra serviceable hulls.