|Hawes and Wilson, courtesy Syfy|
Let's break it down, shall we? The ominous announcer voice talks about a "team member's shocking announcement" as Grant Wilson nervously tugs on his waistband. That is followed by Amy Bruni at a table - surrounded by investigators Adam Berry, Britt Griffith, Steve Gonsalves and Dave Tango - asking if they "think it's bad news or good news" (kudos to Griffith for ever being the actor in the shot with his shifty, knowing eyes). The news likely doesn't involve anyone sitting at that table. The next shot is of Gonsalves tearing up (which is a complete anomaly unto itself) and Tango biting his lip, so that suggests they were shocked, so the news isn't about them. Then we see the team lining up for hugs, with Bruni hugging someone wearing a gray top. Note that Wilson is in a gray North Face fleece. Wilson is heard in voiceover saying, "this is just crazy." The next scene is Hawes and Wilson outside, talking to one another. Wilson is postured defensively (arms crossed) while Hawes is shifting on his feet and positioned almost aggressively as he says, "It is what it is." In a series of quick cuts, we also see a dry-eyed Hawes, a teary-eyed Wilson, more of Gonsalves crying (!) and Griffith saying he feels like he's going to puke.
Based on how the promo is edited, it certainly suggests that Grant Wilson is exiting the show and that Jason Hawes will be sticking around. That seems fairly certain.
The fairly far-out prediction is that Hawes fired Wilson, or that it could be presented to look that way. That would be a shocker, and we're doubtful about that. Plus they wouldn't want to turn Hawes into a bad guy character on the show. But whatever Hawes' role is, he clearly doesn't look happy.
More likely is the dude just wants to spend time with his family after doing the show for more than seven years, and who could blame him? It could also mean something more of a downer involving illness, etc., but it would seem like the promo would be edited with more of a sensitive tone if that were the case (and we certainly hope it's not).
The other outlying answer might involved Berry since there are no reaction shots or soundbites from him, but that would be a large amount of fanfare surrounding his departure if so. Unless he killed a client or something.
...Or maybe they're just bringing back "villain" Brian Harnois.