Cliff Martinez, of former Red Hot Chilli Peppers fame (he used to be the drummer) may have dropped some inside information regarding Far Cry 4. During interview with Lost in the Multiplex, he mentioned, by name, that Far Cry 4 was his next project. This specific section of the interview has since been removed, but as we all know, nothing is ever truly lost on the internet. As evidenced by the screencap above.
At present, no futher word has come from any sources to either confirm or deny this claim. It could, of course, be nothing more than some good natured trolling, or a slip of the tongue, or who knows? Maybe even an editorial error on Multiplex's part. All we can do is speculate. Until, of course, official word comes one way or the other. But I feel inclined to file this one under highly likely. Given the success of Far Cry 3, and the sort of sequel Blood Dragon, we all know Ubisoft will be continuing the series. It's only a matter of time. So keep a close eye folks, because we will be bringing you more as soon as we know it.