Unfortunately there is not enough time to put new proposals, or even revisions pf proposals that have been "held," on the ballot.  The Charter Commission is currently working on ballot question wording and educational materials for the 27 or so proposals that were approved to move forward.  My understanding is the final meeting of the commission for ballot question approvals will be August 4.  The clerk's office then has until August 25 to submit the questions to the state.