For me, they should have stuck to the original theme: from wikipedia,
The concept was a large open space full of life and music, lit from all sides around a central avenue with a starry sky. The columns that supported the starry sky would be the remnants of an old power station, left standing after the site was converted into a festival of 90’s contemporary American entertainment.
Gehry (the architect) noted:
The idea of a station in the U.S. made me think of power stations which are often found this close to a railway line. Festival Disney is a bright place full of life. The power stations are illuminated at night, hence my idea of a network of 3,600 low-intensity bulbs that cover all of the structures. Naturally, the lights will be suspended between towers and, as a measure of the design process, I blew and embellished the towers that I wanted to sparkle without merely being decorative. Once the sky and towers were imagined, I disposed of buildings and other parts of a normal avenue...
Now update this with a starry sky of LED lights which can twinkle and some warm lights incorporated into the towers which will be turned for a more cozy atmosphere. Add some electricity/lightning/laser stuff going on at random between the top of the towers, let a train by walt glide along the towers and trough the air (like dreams projections), add some sound effects.
Keep the neon, no colorful balloons. Create a "separate" section with some greenery and a fountain.
And keep the place loud like it used to be, not this relatively quiet "pass-trough-to-the park" section.