It would be very cool to finally have a second gate for Universal Studios Hollywood, but the only problems are that the new park would have to end up being placed over the entire Universal film lot, and putting the park on nearby property would be a big no-no. So for my second gate idea, it would be a park placed in San Diego, California, home to other attractions like SeaWorld, Legoland, San Diego Zoo, San Diego Safari Park, and Belmont Park.
I know it would be further away from the Hollywood park, but this problem could be solved by making the USH Annual Passes also good at the new San Diego park.
A new, California division of Universal Parks & Resorts would also be formed, titled "Universal Parks California".
In my idea, the new park would be named "Universal's Worlds of Adventure". It could even just be a moderately different, California version of Islands of Adventure (minus the Marvel land) or a moderately different, California version of Epic Universe.
The park would even have a California version of the Volcano Bay water park.
Finally, some of the lands at the San Diego park would be Seuss Landing, Toon Lagoon, and a Shrek-themed land.