"...continues to target FAA certification of the MAX flight control software updates during this quarter. Based on this schedule, it is possible that the resumption of MAX deliveries to airline customers could begin in December, after certification, when the FAA issues an Airworthiness Directive rescinding the grounding order. In parallel, we are working towards final validation of the updated training requirements, which must occur before the MAX returns to commercial service, and which we now expect to begin in January."
Source: From a statement posted by Boeing, November 11, on the Boeing website, indicating that the company may be setting targets that the FAA may not agree with.