I think it makes a lot of sense to do that.I think it's a virtual certainty that the 052B will be upgraded with H/AKJ-16 VL cells, though I think there is not enough space for 48 cells in the front. They may get rid of the step platform underneath the forward Shtil launcher and turn that area into a 32-cell VLS that is flush with the foredeck, while keeping the platform intact in the area where the decoy launchers are located. The centerline area in between the launchers certainly would not be usable for VLS cells given the blast the decoy launchers would generate.
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I think a second hanger, that will require raising that part so its level to the other side, then an HQ-10 launcher on top.The only question for me is whether they will install VLS in the back after the rear Shtil launcher is removed. Given they installed only 32 VL cells on the larger Sovs, I doubt they will go for 32 + 16 cells on the 052Bs. They may just add a second hangar instead.