I asked Hasbro AUS today if there will be any licensed Transformers Easter items this year, and they replied to say that none of their usual licensees took up the option this year.
It explains why I wasn't able to find anything while checking out stores in the last few weeks.
(it's the first time in about five years we haven't had something for Easter... and I don't think we had anything at Christmas last year either, other than the advent calendar)