So the 055 is not as radical a departure from previous designs as some thought it was going to be, for example no 3D L band rotating long range radar. It looks to be in effect a scaled up 052D.
Well the 052C & 052D used that rotating Yagi antenna (VHF?) for long range search (including low RCS targets?). The 055 doesn’t seem to have that installed. They might add it later-on or maybe something entirely new.