Here's the current proposal and here are the paragraphs on non-refundable fees and flat fees:
(d) A lawyer may make an agreement for, charge, or collect a fee that is denominated as “earned on receipt” or “non-refundable,” or in similar terms, only if the fee is a true retainer and the client agrees in writing after disclosure that the client will not be entitled to a refund of all or part of the fee charged. A true retainer is a fee that a client pays to a lawyer to ensure the lawyer’s availability to the client during a specified period or on a specified matter, but not to any extent as compensation for legal services performed or to be performed.
(e) A lawyer may make an agreement for, charge, or collect a flat fee for specified legal services as long as the lawyer performs the agreed upon services. A flat fee is a fee which constitutes complete payment for legal fees to be performed in the future for a fixed sum regardless of the amount of work ultimately involved and which may be paid in whole or in part in advance of the lawyer providing those services.