Blizzard has said time and again that World of Warcraft will probably not be released on consoles. But as we learned this year, World of Warcraft is not the only MMO on Blizzard's plate. They've been occasionally tossing up job adverts for people with various skills to work on "Next-Gen MMO" stuff. The folks at Blizzard have never fully embraced consoles and successful console MMOs are rare, so even though we knew Blizzard had some kind of console title in the works, there was no evidence that the next-gen MMO project(s) would be for anything other than the PC (and maybe Mac).
Well, the latest of the MMO job adverts (this time for a physics programmer) requires would-be applicants to have "programming experience on both console and PC titles." This leads us to believe that Blizzard is either making an MMO that will be released for both the PC and one or more consoles, or that it's producing multiple MMO titles with the same physics engine and that the PC and consoles will get different games ... or both.
Either way, it's a tantalizing hint at what's to come.