No it's not an April fools article. H I Sutton is a respected writer.I expect this is not another 1 april newsarticle.
With such naval projects its not more than logic that surrounding countries are also building or planning their own aircraft carriers or 'aircraft carrying destroyers'.China's New Aircraft Carrier Is In Same League as US Navy's Ford Class - Naval News
The Chinese Navy is radically modernizing its capabilities. Chief among these are a fleet of aircraft carriers. A new satellite image clearly shows the Type-003 aircraft carrier taking shape in Shanghai, and it is the largest so far.www.navalnews.com
And it is unlikely that thiswill be China's last aircraft carrier.
Yes there will be more carriers. The Type 004 is to be the CVN, but I remember reading something earlier this year that the CVN may be on hold. However that wouldn't preclude them from building more of the 003 Class because once the first of class is underway, they can build more with the project risks decreasing with each build. If they intend using the 003 hull for the CVN, then the main risks will be around the nuclear power plant and drive train.