For a long while, it seemed like these were just concepts. However, HQ has appeared in shops as of Wednesday, 2017-02-15.
At first glance, it looks like the height chart is stuck to the busts' backs, but it's held in place by a notch in the base.
MSRP: $70
6.5-inches tall
----------------------------------------
Harley Quinn Version 1
Harley Quinn Version 2
Based on this cosplayer:
Joker (June 2017)
Catwoman (Late 2017 or Early 2018?)