Although Star Wars fans would like Disney to #MakeSolo2Happen, there's still no sign of Solo 2, and its unlikely the Mouse House and Lucasfilm would commit to a sequel to 2018's Solo anytime soon. Released on May 25, 2018, Solo: A Star Wars Story was the second anthology film of the Disney era, following on from Rogue One (although Solo had been the first spin-off planned, with it in-development even before George Lucas sold his company). Although audiences know where Han Solo and Chewbacca end up after the standalone film, there was still scope for a sequel.
The tease of Darth Maul at the end of Solo: A Star Wars Story, with it revealed that Qi'ra was working for him, seemed like a particularly pertinent angle for a follow-up, while there's still enough time between the movie and Star Wars: A New Hope to show more of Han's adventures as a rogue and smuggler, and the likes of Jabba the Hutt and Bossk have been mooted too. Alden Ehrenreich signed up for three movies as Han, with Emilia Clarke reported to have signed a deal for multiple Star Wars movies too, so it's clearly something that Disney and Lucasfilm were at least thinking about at the time, but Solo's release and the reception to it meant any plans for Solo 2 were very much put on the backburner.
Star Wars fans, led by Star Wars News Net's The Resistance Broadcast, first made the #MakeSolo2Happen trend happen on May 23, 2019, just before the one year anniversary of the film's release, with the hashtag then in wide use again on May 25, 2020. The idea is largely to celebrate Solo and show that the movie does have a vocal fanbase, despite the disappointing response to it upon release. However, despite the tag being a call for Solo 2 to happen, Disney probably isn't going to listen, at least not in the foreseeable future. Solo was the first Star Wars movie to fail at the box office, grossing just $393.2 million despite a budget in excess of $250 million. That's a major flop, even if the film deserved better, and because of that it doesn't make much financial sense for Disney to pursue a sequel.
Of course, the context to Solo's failure is important, especially since its budget ballooned because Ron Howard replaced Chris Miller and Phil Lord as director, reshooting the majority of the film. Solo was at least partially salvaged, but the reviews were only lukewarm, and the marketing campaign had been a letdown as well. With Solo then such a high-profile box office bomb, it not only meant that any plans for a hypothetical Solo 2 (which was never officially in the works) weren't going to happen, but Lucasfilm and Disney started to shift away from the anthology model. While Solo has seemingly gained more fans since, there are no future Star Wars movies planned until December 2022, with the more immediate focus on Disney+ TV shows.
The campaign has reached the likes of Ron Howard and Jon Kasdan (who co-wrote the film alongside his father, Lawrence), but Kasdan himself commented in March 2020 that Solo 2 wasn't in the works, either as a film or a Disney+ TV series. Although some fan campaigns have had success, with HBO Max releasing the Zack Snyder cut of Justice League in 2021, it feels less likely to work here, given it would meaning producing an entirely new film (or show) that, based on Solo's failure, would be a considerable risk. It's not impossible that Disney eventually green lights further adventures following Han, Lando, and Qi'ra, but it won't make Solo 2 happen for a while yet.