The only way the person would know this much about the fighter is if they had seen the entire presentation.
Not only that, but they also apparently know when the contracts were signed. And not only that, but apparently the contracts weren't signed until early this year, despite the character not being FP11, or FP10, but a character that presumably would've had work begun on them... concurrently when this person is claiming negotiations were still happening.
Let's put aside that the acquisition for FP7's content would've been completed well before covid hit for a sec and just think as to how many people would actually know not only the entire contents of the presentation, but also when the negotiations took place.
Now, this guy is a longtime user, and apparently he's leaked Blizzard stuff before, but unless this guy's source is Jeff Kaplan himself,
I think this is all