Everyone already knew Cyberpunk 2077 would be on E3 2018 as CD Projekt Red simply couldn't miss an opportunity to tease us again, but we didn't know if the material they will show would be tied to gameplay. Now it's anything but confirmed.
Bethesda has swooped in with an almost two day long stream and finally revealed Fallout 76 at the end of it, but some people knew what is going to happen hours before the announcement. One such individual is u/SoMeh on reddit, who has posted that Fallout 76 would be the reveal about four hours before Bethesda did.
His post was first met with sarcasm but after it proved to be true, I can only imagine his inbox exploded with questions. Among those questions was whether CD Projekt Red would be showing a gameplay trailer for Cyberpunk 2077 during E3 conference and SoMeh replied with a simple "Yes". On top of the gameplay confirmation, he also replied to another related question - if it will be a showcase behind closed doors or an official trailer. According to SoMeh, this will be an official trailer available to wider audience.
That said, a showcase behind closed doors is not out of the picture either, as CD Projekt Red are also shelling out invitations for some event that will go on for an hour and will only be available to certain press outlets.
On the topic of things that shouldn't be written off, there is also the potential Fallout 3 remaster. Just kidding, you should really write this one off. Reddit was once again up to speed, with u/alhazred111 posting a picture of Nintendo's Showroom Instruction that was labeled as "Internal Use Only". Well I guess the cat is out of the bag now. The rather long list shows the trailers and gameplay footage will be shown for presumable Nintendo Switch, including Wolfenstein 2, DragonBall FighterZ and Fallout 3. So, the anniversary of Fallout 3 will mark its port to Nintendo Switch.
The user who posted the list on reddit also asked if the list was legitimate, which prompted SoMeh to jump in once again, and confirm that these showings will indeed happen. SoMeh doesn't seem to be affiliated with any of the developers or publishers in question but the string of correct predictions, ports that were officially announced and Bethesda's party-themed stream indeed point out that SoMeh is telling the truth.