Only when the rest of our lot has stormed the Manor and ideally located the Dark Lord will Potter appear. His safety is still a top priority, so he'll wait at headquarters until someone lets him know it's time. As soon as he arrives in the clearing by Apparation, he will follow the second wave, flanked by Granger, Weasley and myself, in order to reach his actual target as unscathed as possible. At least that's the plan.