Edit: I just found that this has been posted earlier in this thread - but here's another news site.
EASA gives requirements for return to flight.
The five requirements the European Aviation Safety Agency have listed so far are as follows:
- Reduce the difficulty manually turning the trim wheel
- Address the unreliability of Angle of Attack sensors
- Address the training situation
- Investigate software issues with a lagging microprocessor
The fifth one relates to difficulties in disengaging the autopilot under some conditions:
Investigations have concluded that pilots who encounter a stall scenario relating to the Manoeuvring Characteristics Augmentation System (MCAS) or similar flight control emergencies have difficulty disconnecting the autopilot.