A group of PG&E Corp. creditors could preempt the embattled California utility's own attempt to claw its way out of bankruptcy by presenting a restructuring plan that could be worth at least $45 billion, according to people familiar with the matter. The plan builds on a proposal floated earlier this year. The updated plan includes substantially more cash for compensating existing wildfire victims, establishing a new statewide wildfire liability fund and recapitalizing PG&E, said the people, who asked not to be identified because the details are private.