A new big-budgeted 10 year deal was made at Universal which made sure that fans pretty much brought every single project ever imagined for the park back from the dead. I'm guessing that most of the rumours are wrong and they'll be bringing in some new ideas.
But yeah, everything from a new ride for the Dr Seuss area to a new Jurrasic Park attraction was talked about. The way things are going I reckon we'll see construction towards the end of the new Potter area being built, maybe even before then. However now is a bit too early to tell, Universal are quite good at keeping these things close to the chest these days.