They have a number of timeless franchises they've given up on, which is a shame. Personally, I think Back to the Future and Jaws should ALWAYS be represented by an attraction in the parks. Those movies are Universal gold.
Of course they've still got the blockbuster Jurassic Park and Kong franchises, as well as Fast and the Furious on the way...
But I can see the interest in other outside IPs. They don't have anything like Star Trek or Star Wars in their parks, they don't own a popular comic property(but use Marvel from Disney), and they don't have something adventurous/action oriented like Indiana Jones or James Bond. Properties like all of those named are worth banking on. They're almost guaranteed successes.