Well, there isn't a poster on IMDb in the section for one, and there's no discussion of anyone coming across one elsewhere. And there's nothing about a poster on JOHNNYDEPPZONE, or GK Films' Web site, or the Warner Brothers Web site - and neither of those last two has tweeted about a poster, which is something I have seen them do with their other films. So, either she is seeing a fan-made poster that's so good that she can't tell it's fan made (and that would be interesting because, as I shared on the 19th, she was lamenting about all the fake stuff of Depp as a vampire) or there really is a poster - but it's extremely well hidden.
If only she'd included a link in her post. But my guess right now is that there isn't a poster. If there was, why wouldn't GK Films and Warner Brothers be calling attention to it? Well, unless it leaked...
259 days 14 hours 7 minutes 31 seconds until the day the Depp/Burton Dark Shadows is released(ET)!!