I frequent that subreddit often, this is just one of those people mashing a bunch of vague stuff together based on things already know, rumoured, or guessable. He’s deleted all his posting history but you can check it on websites for credibility and he’s attempted to “leak” battlefield and call of duty before. It’s just karma farming off the hype unfortunately.
I wouldn’t trust anyone unless they have a strong consistency with leaks prior, or can verify a source with the mods. Lots of people like to write vague stuff and build communities of it.