Based on podcasts I’ve listened to where adcoms specifically answer whether to rewrite the PS, the answer is almost always yes. The reason being is that they can see your previous application and it can seem lazy if you don’t rewrite it. They are specifically looking for what you did differently when you reapply. You may have retaken the MCAT, added more volunteering hours, fixed grades... that’s great! But I think it just looks better when you go the extra mile and rewrite everything. You can use the same framework, anecdotes, etc, but just try to attack the PS from a slightly different angle. Just trying to give advice based on what I have heard from several different admissions sources (this is also what you hear from the adcoms on SDN). Good luck!