Kennedy still appears to have ongoing work on the surface. Subterranean work is still a question mark.
Last weekend they were still doing concrete work in the former bus roadway adjacent to the RT tracks. I am not sure if that is related to the LRT but it seems to have stalled somewhat. With the absence of workers above ground I presume work is going full steam ahead underground (or at least I hope so).
With the state of Kennedy Station as it stands now I would not be surprised if it was delayed past 2022.
The only underground structural work going on at Kennedy is the finishing underneath the GO tracks and platforms. Everything else in the station is basically on to the final steps such as flooring and surface finishes. In the grand scheme of things, Kennedy isn't that far away from being done.
The other underground stations closer to Yonge, however, are a different story. Because of how the stations are built - bottom up, and with identical equipment at each - it can be pretty easy to gauge how far individual stations are in the construction process once you realize what you are looking at.
For instance, my local station is Mount Pleasant - they have topped-out the secondary entrance, which is made of poured concrete and contains all of the ancillary equipment required for the station. But at the main entrance, they are still building the concrete structure underground and up to the surface. Thus, they're getting there but are still have quite a ways to go.
Compare this to Leaside Station, where they have not only finished the concrete monolith for the ancillaries (this time at the main entrance), but have also built all of the steelwork for both entrances. Thus, they are quite far along, and once the steel has been enclosed they can finish up electrical and surface finishes.
At Yonge, they are still building upwards, and don't have any of the structures above the surface level yet. There is a LOT of work to be done here still.
Dan