Announced at SDCC, Lego is apparently bringing back the Bionicle theme in 2015.
Bionicle is a series of Lego like Hero Factory, consisting of large constructable `action figures` and had a cartoon running with it during it`s first outing.
Now personally, I`m not to much a fan of the theme as there are not to many parts I can salvage from them to use in builds. However, it does have an avid fanbase, so it`ll probably have a decent run.
But personally, I`ll be looking the cat out of the tree and if there is an intresting piece for MoCcing, I`ll probably resort to BrickLink for those...