Really think the future depends on what Disney wants, not Universal. Universal would likely want to keep the Food & Beverage/Merch aspect, if a contract/fair price can be agreed upon.
While Disney could build mini-lands or attractions (I think they should) at their parks, they already have a good amount of projects in the pipeline. DCA, the likely home to any sort of west coast presence for the characters, won't really have anywhere to slot them in. DHS would benefit tremendously from the characters replacing one of many "dead zones" in the park.