Another view of the aparatus:
An illustration posted earlier:
All of which makes this fan-art amusing:
A tad excessive IMO.
The other superstructure that was mentioned is probably this one. The terrain (and smog) suggests this mast is taken not far from the 055 structure and the liaoning facility. And the fact that it isn't on the 055 structure makes me think it is not for 055, but possibly for the new frigate.
Via xyz, CDF
One possible extrapolation:
Clearly, this design is going to feature an integrated funnel, VLS in the bow and amid ship. I can't figure out where the AESA radars may go though, because the front of the superstructure looks to have enough area for radar panels or bridge windows, but not both. Could this just be the next generation frigate?
If you noticed, combatants that PLAN has built in the past decade share the same mast design. I expect the integrated mast will be standard on all future PLAN's carriers, LPDs, destroyers, and frigates.
If it's 23 m wide, as GE suggests, then it's too big for a frigate.