Though Doctor Strange didn’t make the cut, likely due to it coming out so late in the year, Civil War, Deadpool, and X-Men: Apocalypse landed top spots alongside Batman V Superman: Dawn of Justice. This is likely encouraging to the studios and to fans as well. The critical response of both DCEU films this year led to a petition against Rotten Tomatoes, the aggregation site that pulls together the opinions of film critics. While the effectiveness of the fans’ intentions is questionable, it proved that the people buying tickets to these superhero films and those tasked with critiquing them have vastly different opinions.
That said, a more cynical view of the listing could just be that more people had no idea what Suicide Squad was, and thus took to IMDB in an effort to learn more. Either way you cut it, it’s good publicity for the film, especially with the Suicide Squad: Extended Cut recently making its way to Blu-ray. It also means DC and Warners are likely to double down on the franchise, at least until it stops making them money.
Screen Rant will have more information for you on Suicide Squad 2 and Gotham City Sirens as news is made available.