Thief Legend Coming Soon to KMS

There's a new section under News called ''Secret Diary of Inkwell'' on the maple homepage.
This led me to believe that there will be sneak peeks posted in this 'diary' of new MapleStory content.

So far there is only one and this is it:



This is an unknown Black Wings member. However, people are suggesting this member is related to Orca.
Why am I posting this here? A new Black Wings member Orca was revealed with the release of Mercedes.

Since Mercedes is a Hero character, I think we will see this new Black Wings member in Winter with possibly the Thief Hero character.

Still not sure if that's a boy or a girl.