Well yes, my point is that at this stage I don't think we can call whether 054B will feature that new radar on 075 or 055's X band or perhaps some other kind of radar...The dual sided radar you see works as the main search radar. This is #1
But you also need a fire control radar (GFCS and Antiship). This can be one or two sets. This is #2
PLAN's policy with radars is more complicated because it requires a third --- a dedicated surface search sea skimmer spotter that directs GFCS, HQ-10s, and CIWS. This is #3. Navies don't pursue #3 in an ubiquitous scale as the PLAN did, because they assume that #1 should take care of this. But the PLAN's planners seem to differ.
You can probably argue that #2 and #3 can be integrated into a single set like the Type 055. But the Type 075 choosing not to use this layout suggests there might be something with its new dual band here.
As long as there is something that does #2 and #3. It could be separate radars, or it can be one radar set that does both. The Type 055's X-band radars gave us the first real world option; the Type 075's dual band gives us a second real world option. The 054B/057 may still hatch a surprise and still present an entirely new option, who knows.
The Type 055's X-band radars has a high certainty of getting its second PLAN customer on the 003 carrier, as cutouts in the island mockup seem intended for it.
The only thing that is very likely/confirmed is that this new dual face rotating radar will be present