Following the critical and commercial success of Red Dead Redemption 2, developer Rockstar Games has been quiet. This isn't unusual for the developer, as Rockstar has a reputation for taking its time with its games, but according to a recent employee resume, Rockstar actually has multiple unannounced games in development. And according to a recent rumor, one of those games could be getting announced at E3 2019.
It originated when Reddit user, ThirdeyeReddit, claimed to be an employee of Take-Two Interactive, the parent company of Rockstar Games. The user claims that Take-Two is working on a "landing page" for an unannounced game set to be revealed by Rockstar at E3 2019, promising that this game will "blindside" those who are expecting Rockstar's priorities to lie elsewhere. Of course, this could just be some average Joe since the user is anonymous, but that hasn't prevented rampant speculation about this announcement, especially since these comments were deleted afterward (screenshot below).
The two most likely games to be announced, as perpetuated by this rumor, are either Grand Theft Auto 6 or Bully 2. Both have a cult following of sorts, with rumors concerning Grand Theft Auto 6 running rampant themselves prior to this latest reveal. In fact, rumors of Grand Theft Auto 6's online details and the game's locations have both been making the rounds in the last few weeks. This doesn't rule out Bully 2, however, as many have been clamoring for a sequel since the original launched in 2006, and Grand Theft Auto 5 sets a high bar for a sequel to reach or surpass.
While one of these two seems to be the most popular and arguably the most likely, it's entirely possible that the announcement will "blindside" fans because it is a new IP or something entirely unexpected like an L.A. Noire sequel. It could even be some major Red Dead Redemption 2 DLC or a spin-off not unlike the Undead Nightmare standalone. Considering "multiple games in development" could imply more than two, nothing is really outside a realm of possibility.
However, until E3 2019 takes place in June, this should be taken with a healthy grain of salt. The possibilities are practically endless, and without a way to confirm any of these rumors, it's best to operate as if they are just that: rumors.