I think we can expect an obscure, one off announcement maybe once or twice every year, if that. It would be nice for the people interested to see the following released before it's all said and done. While I'm not fond of all of them (no way would I buy them all), they were no brainers at the time that really should have been struck when the iron was hot,
- '66 Batmobile (proto)
- Returns Catwoman (planned)
- Penguin (planned)
- Arkham City Joker (planned)
- Ra's Al Ghul (planned)
- 1/4 Batman Returns Batman (planned)
- fleshed faced/Civillian Nicholson Joker of some kind (planned)
- Lucius Fox (planned)
- TDKR Armory (prototype)
They mentioned '66 West villains in QnA too, but after seeing their random blue repaint Batman, I have no faith in those coming to fruition.