Sorry everyone for the massive bump but I feel compelled to give my own two cents on this topic. I think in my opinion people are going about this wrong. Destroying the Gibson Amphitheater is a BAD BAD move evident by the fact it houses some of the most ambitious concerts and events in LA. Though its been long rumored Waterworld and Terminator 2 3D will get the boot in the near future trying to condense a giant land in an already congested park would only be a complicated money-wasting endeavor. Universal Studios does have room only outside park boundaries and there is actually a perfect section in the studio the Wizarding World can make home to.
Right at the corner of Citywalk and a part of the Studio Tram Tour is a open grass plain that contains the Universal Lake and a Giant Green Screen. Along side of it is the mummy sequence of the tour that can get the boot as well. Though we all expect Dragon Challenge won't make the cut, with modification within the layout it's a near perfect fit.
Using the wondrous powers of photoshop I created a layout of the proposed project via google maps. Here as you can see Hogsmeade, Hogwarts Castle and Flight of the Hippogriff easily can fit within the space. Exclusive to USH (But soon with the USF expansion) is Hogwarts Express that will be the most proper means to transporting to this isolated land (They can still walk). To accommodate the lack of DC, the alternative attraction will be an interactive Wizard School that will have guest become a wizard themselves. It IS possible with this plan to have a Roller Coaster just not Dragon Challenge however. As you see on future site they can pull off ridding a parking section for such a feet and bridging over the two drive ways towards the park. It's risky though. The reason why they haven't created a roller coaster in the first place is because it may interfere with working sets (ala screaming). For this I just dubbed it "future site" instead.
Knowing USH, they are going to try to milk the phrase "theme park within a theme park" which is why I set it up away from the park. Annual Pass holders will be able to get to the park for free (with increase in ticket pricing), while other attendees will either may pay an extra charge for free admission for one free pass or would have to wait a large line. Due to the size of USH it is a given that the rides will see a increase in attendants as people "wait" for their turn to go to WWoHP (which is why T23D and Waterworld are spared).
So what do you guys think? Is this doable?