Pann users sparked attention when Woolliment was caught sneaking one more member into the rookie group Daredevils?

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On December 3rd, a graphic of seven members was uploaded onto Daredevils official twitter account but was later removed. Fans who were quick enough to snap the picture has then been sharing it and spreading it around. On the graphic photo was also a date which fans are saying to be Daredevils comeback date next year. Could it possibly be true that Daredevils may not be a seven-member group? 

What are your thoughts on this?