http://collider.com/sherlock-holmes-3-filming-sequels-joel-silver/?utm_source
It looks like it could happen this fall. Downey said he wants to do it. He’s gotta launch into another Avengers movie, right after the New Year, so we’re trying to get it done. We have a script that we like. Jude [Law] is available and Downey is available, and we’re hoping we can get it done. If it works, great. If not, we’ll do it another time. But, it looks like it could happen now.