I went to SFDK today and they are very close to completing Joker!
As it is rather difficult to see from the pictures I took, here's a visual representation of Joker's Current State:
As you can see, it only needs a few more elements (Overbank, Barrel Roll, Turn)
Overview of the ride, It looks fantastic when walking into the park!
Drive wheels and other mechanisms are now in place, looks like testing will start very soon after track-work is completed!
That's gonna give some nice airtime!
Trains look fantastic in person! No front car yet
Photo booth is under refurbishment.
Station building is being renovated, Perhaps those white lines are there to stay?
Old cameras still in place, I wonder if they will stay there.
Those are all the Joker Pictures I got. From the rate it is being built, I wouldn't be surprised if it is done within the next 1-2 weeks.