Not to be rude, but they announced probably a year ago they were going to bump up to three movies a year. They just weren't sure which order or year it would start showing though.
If I remember right I was reading an article (either posted here or on another site) that they were all complaining about wages and RDJ was complaining and trying to get the other actors wages improved from what they were (and wasn't trying to increase his). I'd have to look for the article later to look for all the details.