Alright thanks.
Right now, the thing that gives me pause is the timeline of her leaks. The latest I can find from her is the Brawl leaks from 5 years ago, the Castlevania and Tekken ones precede that leak. Also, she hasn't visited gamefaqs in two years so I'm curious if she still has access to that information, much less if she's even interested in giving that information anymore. Another thing to consider is when these leaks hit, correct me if I'm wrong but she didn't give out this information until it was much closer to the original release date of the game, right now it doesn't look like the game will be out for a while and due to that she may not have access to the English version of the game yet.
Of course, this is my concerns on the matter, if it is her then we do have reason to consider this but at this point in time we do not know for sure if it is due to having no information to support it nor do any of the details given have been proven right yet. Due to this, it is probably best to treat this with some skepticism, and if possible try to locate PORTRAITofRUIN ourselves and verify like we did with ChaosZero (though she may be less receptive on the matter).