Is this for 054B or totally new 057? ....... I tend to believe the concept is for 057. This concept is like baby 055 and would cost much more than 054A, perhaps 2x.
I thought 054A' purpose was to be modern enough and cheap enough for frigate and will be produced in big number. The much more expensive and modern version would be reserved for destroyer and cruiser (052D/E and 055A/B), but perhaps PLAN may feel a need for much more modern frigate
I really like the concept of 057
Whether it is true or just a fan design, I have to say who created it have a good understanding of ship design and spent a lot of time doing it ... well done