The best guess for the bolded part would be the (navalized variant of) GJ-11 UCAV, given a few papers studying the use of a similar-type UCAV on the 076 LHD in the past.Navalized J-20? Or a drone of some sort?
I'm not saying that the unknown object currently on Fujian's flight deck is definitely GJ-11 though - I'm only suggesting the possibility of GJ-11 being deployed for future use on Fujian.