I have a sort of general question. I already own 2nd encore on steam, so how will I get Annie when she comes out ?
While we of course do not know, the way original DLC charaters were handled was they were free to grab for 3 months from release, and then became paid dlc. But then you got (the really) second encore which included all of the DLC characters.
Honestly, not that big of a fan of the three months free grabs period, but well at least we know that the mobile version will monetize her properyl. (And yes that's a good thing for us, because Annie needs to make money if Skullgirls is to continue expanding)
Does this mean "true" story mode is coming to 2nd Encore as well, since if I remember correctly, Annie's main thing was that she would have brought the "true" story mode along with her.
Annie was one of the characters required for the canon timeline to be possible to put together. But by herself is not all there is to it. (And boy I will have even more people bringing in the mess into the lore by trying to invalidate events of other timelines due to Annie)
Also keep in mind that a lot has changed since then, and the statement may no longer even be true. A lot of the information we have about the events comes from outside sources, which can be changed by later additions, for example Filia origins