Not sure if credible but apparently type 054A pennant number 578 will have two 11 barreled gun CIWS.
Perhaps smoke and flame may be an issue with its current placement position?
Well. for the Type 1130 it will be more than just the larger footprint on the deck.
The 1130s are significantly heavier, and the magazine has to be bigger too, to accommodate the many more rounds necessary to feed the 11 barrels. So...until I see them actually installed and uncovered I will remain dubious.
As to the missile launcher...yes, they would have to accommodate the back blast and heat for them.
I would keep the two CIWS 30mm uns and add a single missile launcher on the centerline, aft of the funnel on the forward part of the deck over the hangar...if there's room.