According to THR, the new entry in the Jurassic Park franchise will be called Jurassic World and will come out June 12, 2015. Too many 2015 Summer movies.
The title sounds bigger than it is, assuming "Jurassic World" is simply the name of the film's supposedly open and operational theme park. But it's an evocative title nevertheless, indicating an ending in which we all have to learn to coexist with the dinos, sort of how The World's End's title ended up being literally true in multiple ways. That's probably just fantasy talk, though.
In any case, it's definitely better than Jurassic Park 4. Or Jurassic Park: Open. Or just Jurassic. Even though there hasn't been a really good Jurassic Park film since the original, I'm still looking forward to this. Because dinosaurs.