After eight years, and after most of its cast leaving half way through, Suits will conclude after one more season. The ending of the show, which USA Network announced yesterday, is not so much a cancellation but a planned and necessary end to a show that lost the guy who began as the main character, Patrick J Adams, after last season.
At around the same time, Adams' co-star Meghan Markle chose to take her acting talent elsewhere for obvious, royal reasons (she's definitely not going back to being "Briefcase Model #24" anytime soon). Gabriel Macht is still with it, though, so you can expect to see Harvey until the very end.
The show's creator, Aaron Korsh, also has a spinoff waiting for him called Pearson which will star Gina Torres and exist in the suits universe. Korsh addressed the show's ending in a statement: "though I know it isn’t true, it seems like only yesterday USA Network took a chance on an unestablished writer’s very first hourlong script. These days that’s a common thing, but 47 years ago when I first wrote the untitled Korsh project, nobody did it." He went on to thank a long list of people.
As for whether or not Adams and Markle will make a return to the show, Korsh told Deadline that "I have not arranged for millions of dollars to be donated to anything on behalf of anyone so that I can tell you, but as far as the original people coming back including Jessica, we’re so early in the season that we haven’t formulated what we want to do, so we can’t reach out to people before we know what we want to do."