Last long-haul B747 flight on KLM in February I overheard the KLM purser talking to other crew members on the success op economy comfort.
In the B747 eco comfort is really a different quiet section in the airplane. The purser mentioned that KLM is planning to introduce dividers between eco comfort and normal eco in all other aircrafts as well in the near future.
Not sure if it will be AF type of hard dividers, more likely it will be just a curtain I would suppose.