The ? Mark

[Doctor Future]

^ I call BS just because what does one GS manager know?

However, a lot of people started speculating about this because the latest patch is pretty hefty (3GB+).

It will be nice to have another secret character that we haven't seen yet, but guess we'll have to wait and see.

 

[BowTheDeceitful]

From Gamefaqs: "The ? Isnt used for random select.
Files were found with Fujins name on Erron Blacks bullet.
In Cassies fatality there is a tweet that says did you unlock Fujin yet?
And variations were found for him
Plus there is a trophy talking about a secret character in the tower...." I'm gonna just agree with this cause two random selects are stupid.