Please, please, please, please don't let them use this name in any context whatsoever. Epic Universe is a terrible name. Universal's Epic Universe is a disastrous name. It's like saying "Disney's Land of Disney." WTF? If it's the name of the new park then that's a tragic display of marketing ineptitude. If they are rebranding the resort with this name that's misguided considering the past issues they had with Universal Escape. And if they needed to rebrand for whatever reason why not just use, "Universal's Epic Resort" to avoid the redundancy in using the word Universe twice in a phrase three words long.
If they are giving an entirely new name to the second property itself then that's even MORE confusing and quite frankly unnecessary. You don't need to give special names to the different areas of your resort. That would be like if Disney packaged Epcot and its surrounding resorts as a separate entity called "Disney's Epcot World Resort." It would be like they were intentionally TRYING to confuse the consumer.
Fantastic Worlds is a perfect name for the new park. Name the shopping district something distinct and then just consider it all part of Universal Orlando Resort. It's not that complicated.