According to this article, California State Senate leaders will probably introduce a constitutional amendment to permit indirect initiatives. Indirect initiatives are used successfully in Massachusetts. Proponents of an initiative who successfully gather part of the needed signatures can force the legislature to examine that proposed initiative. If the legislature approves the idea, but changes it somewhat, then the proponents can either consider themselves satisfied, or if they don’t like the legislature’s proposal, they can simply finish the petition and it still goes on the ballot.
The system works well because, frequently, initiative backers make mistakes in drafting their proposal, but the indirect initiative offers a method to alter the wording.
The article says the Senate Democrats are also thinking of new ways to hamper initiatives, such as requiring that all statewide initiative petitions be circulated partially by volunteers. This idea would probably be held unconstitutional, because in 1988 the U.S. Supreme Court unanimously struck down a Colorado ban on paying circulators. That case was Meyer v Grant, 486 U.S. 414.