After cutting of steel for 003 in 2015, there was a delay of 1 to 2 years due to changes on the original blue print (choice of steam or EMALS) as per Huahua's postings in CJDBY several years ago (2016-2017?). So 2H 2021 or 1H 2022 would be realistic.
Huahua was obviously a member of the design team, he voiced out he and his teammates' grievances on re-drawing of blue prints and non-stop over-times. He has not been posting much since then.
If this guy is a member of design team , he release the status of 003 will let him in prison for more than 10 years.