We haven't heard much about a new Just Cause in a while, but considering the relative success of JC2, most assume a third is in the works.
…and maybe even a fourth.
According to Fusible , Square Enix has registered a bunch of domains for "Just Cause 4," a game that most certainly doesn't exist yet, primarily because Just Cause 3 hasn't been made. The names, "JustCause4.com" and "JustCause4.fr" (among others) are generating plenty of discussion, as is the discovery of "JustCause3.it." We still don't have an official announcement for the third installment – presumably in development at developer Avalanche – but it has to be coming soon, right? Gotta have it.
Of course, any JC4 registered domains don't mean both JC3 and JC4 are currently being created; that's not how domain registration works. But the mere existence of any new domains with "Just Cause" in the title is significant and well worth noting.