There are very few things outside of casting that we know about the plot of Stranger Things Season 3.

As for time, creators have confirmed the next season will take place in the summer of 1985, which is the end of the school year for the young characters last we saw them.
Now, if the school year meant video games at the arcade, then the summer means more sun and... the mall!
Can we just leave Gwinnett Place Mall with this 80s look? It would be the most popular it's been since the actual 1980s. #StrangerThings https://t.co/DGhZSow2ds pic.twitter.com/rJOUOkkiKS
— Laura Moss (@LauraJMoss) May 11, 2018
Set photos of the renovated Gwinnett Place Mall reveals the interior of the Starcourt Mall being transformed into what looks to be an operating 1980s style mall with some old logos and old stores brought back to life, even if it's just to be featured in a scene for a Netflix show.
According to some set visits,
Noah Schnapp, Finn Wolfhard and Caleb McLaughlin filming scenes outside the Mall today @noah_schnapp @FinnSkata @calebmclaughlin #StrangerThings pic.twitter.com/6L10UPaVxx
— Hawkins Things (@hawkins_things) May 15, 2018
With some avid fans spotting the actors playing Will, Mike, and Lucas in the area, it looks like this could be the new hangout place for the youngest members of the cast, the first season's hangout being Mike's basement, then Season 2's arcade, and now maybe the mall.
Perhaps, we'll even see the teenage cast of Jonathan Byers, Nancy Wheeler, and Steve Harrington make an appearance there as well especially since Charlie Heaton and Natalie Dyer were spotted the same week of filming in the area.
Brand new photos of Natalia Dyer and Charlie Heaton looking grown up on the set of #StrangerThings Season 3
— Stranger Facts (@UpsideDownFacts) May 10, 2018
(via @HlywdPipeline) pic.twitter.com/OajPaEEmja
Even Sheriff Hopper played by David Harbour was spotted this week.
David Harbour, Rob Morgan and the Duffer brothers were on set yesterday to film Stranger Things Season 3. Mayor Kline ? @DavidKHarbour @Cary_Elwes #StrangerThings pic.twitter.com/0iHE5pNIHW
— Hawkins Things (@hawkins_things) May 13, 2018
Now, as filming progresses and the cast expands, it looks like there's a lot more fans are in the dark about. However, at the moment, the question that comes to mind is: Where is Eleven?!