In addition to what Deino posted in some other threads asking about a new carrier at Dalian, the rumor mill is suggesting that work is indeed underway on a new carrier, and it should become visible later this year.
Going into any further detail would not be sensible at this point in time. There are still too many unkowns. I recommend starting a dedicated thread for CV 004, if it proves to be a wholly different design from 003. Word remains that it is nuclear.
Thanks for this post .... any idea, if this carrier will also be built via premanufactured modules or in a traditionell way as the 002/001 A carrier?