Its kind of a moot point.Either
1) They are ready to release as some people believe and arguing now won't change anything.
2) They are not ready to release and don't see it as a priority.
3) They see it as a priority and are working on it but are not ready yet.
Whatever option you pick they will have already made the decision a while back since adapting for an alternate platform is not something you do in a few weeks, its usually a minimum 3 months process if not more.
Personally I think they will release, its been a while since they announced X-box would be coming at somepoint. E3, whilst not solely consoles is quite console dominated so would be an appropriate place to give that news.
(FYI I use the phrase "ready for release" as a vague statement given recent "releases")
Stirring successful, time to move on
