The latest issue of TV-Boy (Terebi-kun) contained an article about Transformers Animated and confirmed that the show will start airing in Japan in April (the usual time for new anime series) on TV Aichi. The issue of TV-Boy also came with a DVD where Optimus Prime, voiced by Jiroki Takahashi, gives an introduction to the series.
The magazine once again talks about how the show will be set within the Movie Universe (something it seems that a lot of people missed despite it being reported several months ago, at least it was right here), which is why Bulkhead's name was changed to Ironhide (again this was explained in months ago).
You can view some images of the magazine below, expect a full gallery of this and other Japanese hobby magazines later this evening.