"This video is the VCR shown at NU'EST W's Double You Final in December. Before that, we had gotten photocards with flowers in the albums.
The first card has 5 flowers, all yet to bloom. This is NU'EST pre-Produce.
The second card has 3 flowers in bloom, and 1 still a bud. The 5th flower is gone, to bloom elsewhere. This is NU'EST W just after Produce, with Aron yet to shine and Minhyun in Wanna One.
The third card has 4 flowers, all in bloom. This is NU'EST W.
The concert VCR added a 4th picture. Of the 5th flower returning. When NU'EST W becomes NU'EST again. And this was what made LOVEs start chanting "Hwang Minhyun!" after this VCR was shown."
source: Nu'est, Dessidy @ r/kpop