Bad joke. There's also a Monica Rambeau version floating around - which would almost be interesting if it was the least bit plausible.
The sister or Storm. Period.
| > > Merry X-mas...|
> > http://comicbook.com/blog/2008/12/16/black-panther-loses-his-manhood-and-his-blackness/
> The Echo and Dora Milaj--whatever they're called are just an advertising ruse.
> Queen Storm is the new Black Panther due to her actions in X-Men world's Apart. She takes up the mantle of the Panther to stregthen and redeem herself to her Wakadan people.
> The clue was when they said 'a STORM is brewing over Wakanda'.
> The other ads are just to keep us guessing.
> But it is Ororo. Or I've been smoking too many heart shaped herbs.