Robert Downey Jr. Confirms Sherlock Holmes 3 Is Happening, Reveals He's a Fan of Benedict Cumberbatch

Warner Bros. Pictures

Robert Downey Jr. may have backtracked on the idea that he's willing to do Iron Man 4(sorry, Tony Stark fans!), but it looks like he's serious about this one.

The actor participated in the ever-so-popular Reddit AMA yesterday to promote his upcoming film The Judge, and to answer a number of fans' burning questions—like are we ever going to see a Sherlock Holmes 3 or what?!

"Yes, we have a Sherlock 3 in development. We want it to be the best of the series, so that's a pretty tall order," RDJ answered, "Also, Perry Mason is a property I'm looking forward to developing further, going back to the 1931 book series…similarly to what we did with the first 2 Sherlocks, mining the original material for things that are 'new.'"

This seems to be right in line with what his co-star Jude Law hinted at late last year. "We had a meeting earlier this year, the three of us, and I think it's being written now," Law toldDigital Spy in 2013 of Sherlock 3. "Warner Bros. have still got to agree to pay for it…I think they want to!"

WATCH: Robert Downey Jr. tells David Letterman Iron Man 4 isn't happening

BBC

Speaking of the crime drama, Downey couldn't help but give credit where credit is due, and praised his fellow thesp Benedict Cumberbatch, who also plays the same role for the BBC series. "Very impressed with Benedict," he wrote. "Such smart writing on that show. I have screen envy."

Because of his back-and-forth with Iron Man, RDJ was asked about the film and his recent remarks to Deadline, where he hinted that he'd consider doing another installment of the popular franchise if his pal Mel Gibson directed it. He explained, "It was an offhanded remark to a journalist and friend. I have other projects in mind for Mel and I."

He also discussed the matter in more detail with David Letterman last night. "There [are] no plans for an Iron Man 4," he revealed. Asked why not, the 49-year-old star said, "That's a valid question. Like it hasn't made enough money? Yeah, I guess they have too much money or something. There is no script for Iron Man 4. They do have a plan and I think they're going to announce it [soon]."

But when asked, yet again, if Iron Man 4 is a possibility, RDJ responded, "Just between us, no. But I'm going to do other stuff with Marvel. I'm still going to be involved with Marvel and there's going to be plenty of fun stuff to happen."