Update: All the details are here.
Just a few days ago rumours surfaced about an alleged reveal for Hitman 2, the next game from IO Interactive (this time to be published by Warner Bros. who recently collaborated with the studio on Hitman: Definitive Edition), that's set to take place today. Both official Twitter accounts have posted teaser video/images pointing to a reveal, and in the past few hours, new details have emerged that seem to confirm an imminent announcement on something related to Agent 47.
Most notably, Warner Bros. shared a short video in which a sniper rifle is shown, which, incidentally, is one of the weapons used by everyone's favourite bald killer. The quick teaser refers to an announcement today at 18:00 BST / 19:00 CEST, and thus it seems that there is a good chance that IO Interactive and Warner Bros. do indeed have something to share.
The question is, will the reveal be for another entry in the main Hitman series (episodic or otherwise), or is the studio teasing some sort of follow up to the popular mobile title Hitman: Sniper? Either way, we'll find out soon enough.