Voorhees27
Super Freak
I'm wondering if they're holding back on Bane and Catwoman for spoiler reasons -- maybe the accessories give something away. So, they do a Joker and a vague Batman announcement. Or, maybe they'll all be announced in the coming weeks before the opening. I'm sure anything spoiler-ish will be held back, though.
SnakeDoc
I don't think so. Personally I think it's smart on them to squeeze in another Joker / Batman right before the movie. Then they can somewhat take their time on the rest given that the movie will be out and be fresh to the market. For many weeks too.