003 is expected to launch in October 2020
And how do you think should be accomplished?? ... maybe you mean
October 2021?!
The modules are built at best half in level up to the deck, they are still not in the drydock and mated, the deck itself isn't ready nor the island ....
003 is - even if constructed in a different way to 002 - surely not even up to this state, when for 002 the hangar deck was added:
Here's what I mean: Well in the first picture the module has not been lowered yet, so it could be for the more forward part of the ship where it is narrower.
www.sinodefenceforum.com
... and that was in October 2015, about 18 months before 002 was launched in April 2017.
By a rough estimation, 003 is probably comparable to the 002 in September 2015. But that's debatable.
Or is this a type or do you mean something different with "launch"??
This is a launch for much and this is plain impossible for the 003 carrier this year:
So in summary: Either you explain, where this misinterpretation is from or why do you think they could manage launch for 003 within 6 months, what took more than 18 months for 002 or stop with such unsubstantial claims!?