No, not really. At least, not confirmed. But there are rumors, and not from Variety:

Mindhunter star Holt McCallany just gave an interview where he talks about how the show might return and the status of director David Fincher’s involvement.

The interview is with CBR promoting McCallany’s other new show, The Waterfront, and he addressed the season 3 issue:

“So look, you know, I had a meeting with David Fincher in his office a few months ago, and he said to me that there is a chance that it may come back as three two-hour movies, but I think it’s just a chance. I know there are writers that are working, but you know, David has to be happy with scripts.”

-Paul Tassi, “A Promising Update On ‘Mindhunter’ Season 3 On Netflix, Of All Things“, Forbes.com

This may end up being nothing, but if writers are working, and Fincher is attached, it could happen. Hopefully they avoid the pitfalls that plagued season 2:

The dirty secret of Mindhunter is that we don’t need the main characters to have full and rich emotional lives displayed on screen for us. The characters are not really characters so much as they are proxies for the exploration of darkness and the historical account of how the FBI codified the demonology of serial killers. That’s the hook; that’s what we want to see. Holden Ford and Bill Tensch and Wendy Carr are all more or less normal people, and the interest is watching normal people confront the void. Who they date and how much golf they play is of no interest unless it informs that confrontation.

-“Quick Review: Mindhunter Season 2” Content Blues

If anything, a return of Mindhunter provides a possible upside to the “Dont’ Ask Questions, Just Consume Product” entertainment hellscape we currently inhabit. If, instead of ruining good product, the Reboot Machine could improve upon cult classics and missteps, we might have something. But the “If” is doing all the work there. We shall see.