They're still not doing a real standalone presser, having discontinued that practice after the 2015 version of E3, but for 2018 Square Enix will be doing a prerecorded broadcast on June 11, starting at 1pm Eastern time, or 6pm GMT. It will be broadcast over YouTube, Twitch, Facebook, Twitter, and a streaming network called Mixer that I've never actually heard of because I'm not young and/or cool. It will also be available via
Square Enix' E3 microsite.
Beyond that, details are a bit thin so far. We know that the broadcast will be available in Japanese and English, and there will be no physical location to watch the stream in person at or near E3, with the company relying solely on the distributed stream. The company does not plan to pre-publish a list of games to be discussed, nor is there any word as to whether any of the major pressers will include any Squenix game information in advance. Of course, that leaves us plenty of room to speculate! I think it's a lock that we'll see much more new information around Kingdom Hearts III and Shadow of the Tomb Raider, quite likely that there will be some new content for Final Fantasy XIV, Final Fantasy XV, Dissidia NT and the ongoing mobile games discussed, and not out of the realm of possibility that we'll get announcements of some new mobile games or ports for immediate release. I doubt we'll get anything out of Final Fantasy VII, though.
Source:
Gematsu