Friday, the day after the New York State Rifle & Pistol Ass'n v. Bruen Supreme Court decision, the California Attorney General wrote a letter to California law enforcement and government lawyers, expressing "the Attorney General's view that the Court's decision renders California's 'good cause' standard to secure a permit to carry a concealed weapon in most public places unconstitutional."
California thus seems ready to promptly shift to a fundamentally shall-issue regime, in which pretty much all law-abiding adults can get licenses to carry concealed weapons. Nor will this require legislative action, I think; California already has a may-issue regime in place for licensing, so—as the AG's office notes—licensing authorities ("sheriffs and chiefs of police") can just use that regime but essentially without applying a good-cause requirement.