Well, they've removed all the sensors, coms, and armaments. The question is whether some/all of these have been removed for refurbishment, or for replacement.
VLS issue is tricky: the 054A does not have that elevated structure (on which the HQ-7 is mounted) in front of the bridge. Can they place the HQ-16's VLS in that space on the Type 054s or must they remove it? If the latter, they have not done so yet. For comparison, when Australia modified some of its Perry-class frigates (Adeleide-class) with an 8-cell Mk 41, the VLS protruded out of the deck. So maybe there is a 'middle ground' option, where a smaller number of HQ-16 VLS are inserted. That said, I am not sure 8 or so HQ-16 VLS is worth the effort. With the Mk 41, you can at least quad-pack ESSM (= 32 SAMs). But when the Shenzen, the sole Type 051B destroyer, was modified, the elevated structure deck was removed, leading to 32 HQ-16 VLS. So maybe 16 VLS is a reasonable number to expect.
The VLS is obviously a big deal, but IMO the radar is a more important data-point: how long is the PLAN going to build/field the Type 382? Even if the ship is undergoing an MLU, it will be probably be in service for another 15 or so year (i.e., until ~2035). With all the newfound technological capacity for PESA and AESA designs, it is a strange or very budget conscious choice, no matter the efficiencies coming with a radar which is mounted on 35 or so warships. At the end of the day, the Type 382 is best conceptualized as 1990s technology.