I'll go out on a limb and say it will also have APARS (possibly above the bridge) and will most likely have a couple of AK1130. Also hanger for 2 helos. Nothing exotic like the Zumwalt but an evolutionary step up from 052D.
Yep, 052Ds APAR seems likely, along with the type 1130 and two hangars.
The big questions are VLS number, and type of propulsion. The latter will be influential because it will directly determine if 055 can be refitted with DEW or rail gun in future