
SOYO's speculation
New FFG will have a larger displacement than 054B but smaller than 052D, max speed and combat speed will be faster than the 054A but 32+ knot speed drifting is out of the question as it was not required in the tender.
New DDG should have greater range and firepower than 052D hence will be bigger. It's expected to be similar in size/classification to the Burke III but incorporate more advanced sensors/weapons.
For 055 mod. and CG, these are basically top tier product hence it is very difficult to find info on them. If they do indeed exist, the construction period will be long so stay patient.
The 15th 5YP is a critical period where all classes of ships will start to see their successors emerge. If done correctly, in under 10 years from now, PLAN could firmly assert it's technological dominance on USN.